Configuring Windows XP© Services

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Updated for Service pack 2.

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Disclaimer : This information is intended for reference only. And we will not be responsible for any problems you may encounter.
Further more, the following information is correct to the best of my knowledge; it is at your own risk to follow such as this information
even if some information is incorrect or not.

Notes

  •  All of these services are standard with Windows XP after the installation of Service Pack 2. If there is a service
    listed on your computer that is not listed here, it is due to the fact a third party service was installed.
  •  If you do not have some of these services listed,  You may bought a computer from a manufacture which they
    "pre-installed" a modified version of Windows XP, they may not to have certain unneeded services installed for you.
    Or you may not have installed Service Pack 2.
  •  Putting your setting to "manual" or the listing under "Safe." Manual allows Windows XP to start up services when
    it needs to, but not at boot up. Depending on your configuration, not all services will start when required while in
    "Manual" mode. If you find you need a service, place it in Automatic.
  •  Disabling all of the "unneeded services" can free up about 10 to 80 MB of RAM,
  •  An asterisk indicates changes from Service Pack 1a to Service Pack 2.
  •  If certain services below are disabled, any services that explicitly depend on it will fail to start.

Table Header Information

  •  Name- How it displays in the Services Control Panel
     Process Name- Name of the process the service runs under
     Description- Explanation of said service, Descriptions enclosed in ~~ are quoted from the Services Control Panel
    provided by Microsoft.
     
  •  Default Start-Up Setting Home/Pro ~ This is what is running on Windows XP by default.
    •  Auto (Autotomatic) ~ With a service in this state, it will start at boot time. Some services, when no
      longer required, will also automatically stop when not needed.  If you find you do not need a service, place it into
      Manual or Disabled.
    •  Manual ~ Manual mode allows Windows to start a service when needed. However, very few services will start up
      when required in Manual mode. If you find you need a service, place it into Automatic.
    •  Disabled ~ This setting will stop a service from starting, even if needed.
       
  •  "SAFE" Configuration ~ This is the configuration that most people will be able to use with little or no side effects.
    It will also minimizes the amount of "errors" that is reported in the Event Viewer.

Directions

  1. Click start-->Run, then type services.msc to start "Services" control panel.  See Figure 1
    •  Note: If you choose to use msconfig instead of services.msc, to make changes to your
      services changes,
      you can indivertibly disable services that may be required to boot your computer.
  2. Double Click on the particular service you want to change. See Figure 2
  3. Under the "General Tab" you'll see where it say start up type. Choose one of the following options.
    Automatic, Manuel, or Disabled.
  4. Reboot your computer after adjusting your service settings.
    •  Note: Be sure to look at the "Dependencies" tab as well as this web page, you can see what
      that particular service your trying to change depends on. (Meaning some services depend on
      other services to run. So if you disable a service that depends on an other service, it will disable
      that service or cause it not to run properly.) See figure 3

    Fig 1 Fig 2 Fig 3

Name, (Process Name)
& Description

Default Start-Up Setting Safe
Start-Up Setting
Dependencies
Home Pro
Alerter (svchost.exe)
Notifies users of administrative alerts. If Service Pack 2 is installed, this service is set from Manual to Disabled by default.
Disabled Disabled Disabled

Alerter depends on the following service(s) to function properly:

Service(s) that depend on Alerter to function properly:

  •  None
Application Layer Gateway Service (alg.exe)
Provides support for 3rd party protocol plug-ins for Internet Connection Sharing and the Internet Connection Firewall.

Internet Connection Firewall / Internet Connection service is dependant on this service. But after Service Pack 2 installed, it no longer is required since the service was updated and renames to Windows Firewall / Internet Connection Sharing

Manual Manual Manual

Application Layer Gateway Service depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Application Layer Gateway Service to function properly:

  •  None (after service pack 2)
Application Management (svchost.exe)
Provides software installation services such as Assign, Publish, associated with "Add/Remove Programs" in the control panel .
Manual Manual Manual Application Management depends on the following service(s) to function properly:
  •  None
Automatic Updates (svchost.exe)
Enables the download and installation of critical Windows updates. If the service is disabled, the operating system can be manually updated at the Windows Update Web site, If you choose not to use this service, such as examples in the following:
  •  Slow dial-up connection. Takes to long for installing updates
  •  Want to learn more about the update before downloading.
  •  Find out why you need the update and what it fixes.

Note: Manual updates using Windows Update Version 5 web site requires Cryptographic Services, Background Intelligent Transfer Service, and Event Log to be running.

Auto Auto Auto Automatic Updates depends on the following service(s) to function properly:
  •  None
Background Intelligent Transfer Service (svchost.exe)
Uses idle network bandwidth to transfer asynchronous data.  Windows Update & MSN Explorer uses this "feature." It "continues" a download if you log off / logon or shutdown / restart of the system.
Manual Manual Manual

Background Intelligent Transfer Service depends on the following service(s) to function properly:

Service(s) that depend on Background Intelligent Transfer Service to function properly:

  •  None
ClipBook (clipsrv.exe)
Enables ClipBook Viewer to store information and share it with remote computers. If the service is stopped, ClipBook Viewer will not be able to share information with remote computers.~

Other words, its a version of clip board (that allows you to copy & paste) but made to be used for remote computer users.

After the installation of Service Pack 2, this service is set from Manual to Disabled by default.

Disabled* Disabled* Disabled

ClipBook depends on the following service(s) to function properly:

Service(s) that depend on ClipBook to function properly:

  •  None
COM+ Event System (svchost.exe)
Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications.

If you have nothing installed in this directory: "C:\Program Files\ComPlus Applications\"
you may disable this service

Manual Manual Manual

COM+ Event System  depends on the following service(s) to function properly:

Service(s) that depend on COM+ Event System to function properly:

COM+ System Application (dllhost.exe)
Manages the configuration and tracking of Component Object Model (COM)+-based components.~

If you have nothing installed in this directory: "C:\Program Files\ComPlus Applications\"
you may disable this service

Manual Manual Manual

COM+ System Application depends on the following service(s) to function properly:

Service(s) that depend on COM+ System Application to function properly:

  •  None
Computer Browser (svchost.exe)
Maintains an updated list of computers on the network and supplies this list to designated computers  browsers. If this service is stopped, this list will not be updated or maintained. This service is not required for standalone systems.
Auto Auto Disabled

Computer Browser depends on the following service(s) to function properly:

Service(s) that depend on Computer Browser to function properly:

  •  None
Cryptographic Services (svchost.exe)
Provides three management services: Catalog Database Service, which confirms the signatures of Windows files; Protected Root Service, which adds and removes Trusted Root Certification Authority certificates from this computer; and Key Service, which helps enroll this computer for certificates. If this service is stopped, these management services will not function properly.
Auto Auto Auto

Cryptographic Services depends on the following service(s) to function properly:

Service(s) that depend on Cryptographic Services to function properly:

  •  None
DCOM Server Process Launcher* (svchost.exe)
Provides launch functionality for DCOM services.
Auto Auto Auto*

DCOM Server Process Launcher depends on the following service(s) to function properly:

  •  None

Service(s) that depend on DCOM Server Process Launcher to function properly:

  •  None
DHCP Client (svchost.exe)
Manages network configuration by registering and updating IP addresses and DNS names.~
Auto Auto Auto

DHCP Client depends on the following service(s) to function properly:

  •  AFD Networking Support Environment
  •  NetBIOS over TCP/IP
    • TCP/IP Protocol Driver
      •  IPSEC driver
  •  TCP/IP Protocol Driver
    •  IPSEC driver

Service(s) that depend on DHCP Client to function properly:

  •  None
Distributed Link Tracking Client (svchost.exe)
Maintains links between NTFS files within a computer or across computers in a network domain.~ This service is not needed for a standalone system. This service uses about 3.5 MB to 4 MB of RAM
Auto Auto Manual

Distributed Link Tracking Client depends on the following service(s) to function properly:

Service(s) that depend on Distributed Link Tracking Client to function properly:

  •  None
Distributed Transaction Coordinator (msdtc.exe)
Coordinates transactions that span multiple resource managers, such as databases, message queues, and file systems.~. Microsoft's .NET may require this service in the future.
Manual Manual Manual

Distributed Transaction Coordinator depends on the following service(s) to function properly:

Service(s) that depend on Distributed Transaction Coordinator to function properly:

DNS Client (svchost.exe)
Resolves and caches Domain Name System (DNS) names for this computer. If this service is stopped, this computer will not be able to resolve DNS names and locate Active Directory domain controllers.
Auto Auto Auto

DNS Client depends on the following service(s) to function properly:

  •  TCP/IP Protocol Driver
    •  IPSEC driver

Service(s) that depend on DNS Client to function properly:

  •  None
Error Reporting Service (svchost.exe)
Allows error reporting for services and applications running in non-standard environments.

Logs errors when application has a problem. Also reports the errors to Microsoft.

Auto Auto Disabled

Error Reporting Service depends on the following service(s) to function properly:

Service(s) that depend on Error Reporting Service to function properly:

  •  None
Event Log (services.exe)
Enables event log messages issued by Windows-based programs and components to be viewed in Event Viewer. This service cannot be stopped. This is helpful if you want to check out the Event Log to see problems with applications.

Note: Manual updates via Windows Update Version 5 web site requires Cryptographic Services, Background Intelligent Transfer Service, and Event Log to be running.

Auto Auto Auto

Event Log depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Event Log to function properly:

Fast User Switching Compatibility (svchost.exe)
Enable multiple users to login to the same PC simultaneously.
Manual Manual Manual

Fast User Switching Compatibility depends on the following service(s) to function properly:

Service(s) that depend on Fast User Switching Compatibility to function properly:

  •  None
Fax or Fax Service (fxssvc.exe)
Send and receive faxes.
Not Installed by default. Install using Win XP Disc if needed Disabled

Fax depends on the following service(s) to function properly:

Service(s) that depend on Fax  to function properly:

  •  None
FTP Publishing  or  FTP Publishing Service (?)
Provides a FTP server on your network.
Not Available Not Installed by default. Install using Win XP Disc if needed Disabled

FTP Publishing depends on the following service(s) to function properly:

Service(s) that depend on FTP Publishing to function properly:

  • None
HTTP SSL* (svchost.exe)
This service implements the secure hypertext transfer protocol (HTTPS) for the HTTP service, using the Secure Socket Layer (SSL).
Manual Manual Manual

HTTP SSL depends on the following service(s) to function properly

  • HTTP

Service(s) that depend on HTTP SSL to function properly:

  • None

Help and Support (svchost.exe)
Enables Help and Support Center to run on this computer. If this service is stopped, Help and Support Center will be unavailable.

This service is required for Microsoft's online or offline help documents.

Auto Auto Manual

Help and Support depends on the following service(s) to function properly:

Service(s) that depend on Help and Support to function properly:

  •  None
Human Interface Device Access (svchost.exe)
Enables generic input access to Human Interface Devices (HID), which activates and maintains the use of predefined hot buttons on keyboards, remote controls, and other multimedia devices. If this service is stopped, hot buttons controlled by this service will no longer function.
Disabled Disabled Disabled

Human Interface Device Access depends on the following service(s) to function properly:

Service(s) that depend on Human Interface Device Access to function properly:

  •  None
IIS Admin* (inetinfo.exe)
Allows administration of Web and FTP services through the Internet Information Services snap-in.
Not Available Not Installed by default. Install using Win XP Disc if needed Disabled IIS Admin* depends on the following service(s) to function properly:

Service(s) that depend on IIS Admin* to function properly:

IMAPI CD-Burning COM Service (imapi.exe)
Enables "drag and drop" CD burn capability. This service starts and stops itself when needed while in the manual state. If you cannot burn a CD with it on manual, switch to automatic.
Manual Manual Manual *

IMAPI CD-Burning COM depends on the following service(s) to function properly:

  •  None

Service(s) that depend on IMAPI CD-Burning COM to function properly:

  •  None
Indexing Service (cisvc.exe)
Indexes files on local and remote computers, for rapid access to files.

It uses about 500 K to 2 MB of memory in an idle state, Also uses high amount of CPU resources.
You can however remove this service, through "add/remove" programs in the control panel.

Manual Manual Disabled

Indexing Service depends on the following service(s) to function properly:

Service(s) that depend on Indexing Service to function properly:

  •  None
Internet Connection Firewall / Internet Connection (svchost.exe)
(Renamed to Windows Firewall / Internet Connection Sharing
after the installation of Service Pack 2.)
Allows multiple computers on a home network to access the internet under one account. It also
provides network intrusion prevention services for a home network, If you use Hardware router or gateway this service is not needed.
Auto Auto Manual Internet Connection Firewall / Internet Connection depends on the following service(s) to function properly:

Service(s) that depend on WInternet Connection Firewall / Internet Connection to function properly:

  •  None
IPSEC Services (lsass.exe)
Manages IP security policy and starts the ISAKMP/Oakley (IKE) and the IP security driver.
Some domains may require this. In the future, some processes and applications may take advantage of this service.
Auto Auto Auto *

IPSEC Services depends on the following service(s) to function properly:

Service(s) that depend on IPSEC Services to function properly:

  •  None
IPv6 Helper Service*  (svchost.exe)
This service translates IPv6 IP addresses to the older IPv4.
Will be used in the future.
 Not Installed by default. Install using Win XP Disc if needed Disabled

IPv6 Helper Service* depends on the following service(s) to function properly:

Service(s) that depend on IPv6 Helper Service* to function properly:

  •  None
Logical Disk Manager (svchost.exe)
Detects and monitors new hard disk drives and sends disk volume information to Logical Disk Manager for configuration.

You will need this service to run the MMC console for dynamic volumes.

Auto Auto Manual

Logical Disk Manager depends on the following service(s) to function properly:

Service(s) that depend on Logical Disk Manager to function properly:

Logical Disk Manager Administrative Service (dmadmin.exe)
Configures hard disk drives and volumes. This service only runs for configuration processes and then stops.

This is also needed for the MMC console.

Manual Manual Manual

Logical Disk Manager Administrative Service depends on the following service(s) to function properly:

Service(s) that depend on Logical Disk Manager Administrative Service to function properly:

  •  None
Message Queuing (mqsvc.exe)
Provides a communications infrastructure for distributed, asynchronous messaging applications.
This service is not needed for standalone computers.
Not Installed by default. Install using Win XP Disc if needed Disabled

Message Queuing depends on the following service(s) to function properly:

Service(s) that depend on Message Queuing to function properly:

Message Queuing Triggers (mqtgsvc.exe)
Associates the arrival of incoming messages at a queue with functionality in a COM component or a stand-alone executable program.
This service is required in conjunction with Message Queuing service.
Not Installed by default. Install using Win XP Disc if needed Disabled

Message Queuing Triggers depends on the following service(s) to function properly:

Service(s) that depend on Message Queuing Triggers to function properly:

  •  None
Messenger (services.exe)
Provides the ability to send messages between clients & servers. It is also advisable to disable this service to avoid the possibility of "net send" messages getting sent to your computer from the internet with SPAM! If Service Pack 2 is installed, this service is set from Automatic to Disabled by default. This service has in NOT the same MSN Messenger.

To test for vulnerability, open the command prompt program (start-menu-->run) type:

net send 127.0.0.1 test

If you receive a dialog box with the message "test", you should disable the Messenger service.
If you receive an error stating, "The message alias could not be found on the network," you are safe.

Disabled Disabled Disabled

Messenger depends on the following service(s) to function properly:

Service(s) that depend on Messenger to function properly:

  •  None
MS Software Shadow Copy Provider (dllhost.exe)
Manages software-based volume shadow copies taken by the Volume Shadow Copy service.
this service is used conjunction with the Volume Shadow Copy service, Microsoft Backup uses these services. Third party hard disk software ("ghost" or "imaging") may need this service to be running.
Manual Manual Manual

MS Software Shadow Copy Provider depends on the following service(s) to function properly:

Service(s) that depend on MS Software Shadow Copy Provider to function properly:

  •  None
Net Logon (lsass.exe)
Supports "log-on" authentication for computers in a domain.
If Service Pack 2 is installed, this service is set from Automatic to Manual by default.
Manual* Manual* Disabled

Net Logon depends on the following service(s) to function properly:

Service(s) that depend on Net Logon to function properly:

  •  None
NetMeeting Remote Desktop Sharing (mnmsrvc.exe)
Enables you to access another computer or vise versa using NetMeeting. Of course this service is not really needed in Win XP, because of the program Remote Assistance and or Remote Desktop takes its place.
Manual Manual Disabled NetMeeting Remote Desktop Sharing depends on the following service(s) to function properly:
  •  None
Network Connections (svchost.exe)
Managing network connections. You can set it to disabled if you have no network or internet to connect to.
Manual Manual Manual

Network Connections depends on the following service(s) to function properly:

Service(s) that depend on Network Connections to function properly:

Network DDE (netdde.exe)
Dynamic Data Exchange
Provides network transport and security for data for programs on computers on a domain.
If Service Pack 2 is installed, this service is set from Manual to Disabled by default. If you use ClipBook, remotely set it to automatic or manual.
Disabled Disabled Disabled

Network DDE depends on the following service(s) to function properly:

Service(s) that depend on Network DDE to function properly:

Network DDE DSDM (netdde.exe)
Manages Dynamic Data Exchange (DDE) network shares.~
If Service Pack 2 is installed, this service is set from Manual to Disabled by default. If you use ClipBook, remotely set it to automatic or manual.
Disabled* Disabled* Disabled

Network DDE DSDM depends on the following service(s) to function properly:

  • None

Service(s) that depend on Network DDE DSDM to function properly:

Network Location Awareness (NLA) (svchost.exe)
Notifies network servers when certain information changes, such as network configuration and location information settings.
Internet Connection Firewall / Internet Connection
(
Renamed to Windows Firewall / Internet Connection Sharing
after the installation of Service Pack 2.) is dependant on this service, unless you have installed Service Pack 2 which they have removed the dependency.

Note: If you don't run a Server, go ahead and disable this service.

Manual Manual Disabled*

Network Location Awareness (NLA) depends on the following service(s) to function properly:

  •  AFD Networking Support Environment
  •  TCP/IP Protocol Driver
    • IPSEC driver

Service(s) that depend on Network Location Awareness (NLA) to function properly:

  •  None (after service pack 2 is installed)
Network Provisioning Service (svchost.exe)
This service is used in conjunction with a domain controller and XML configuration files. This is not needed for home networks.
Manual Manual Disabled*

Network Provisioning Service depends on the following service(s) to function properly:

Service(s) that depend on Network Provisioning Service to function properly:

  •  None
NT LM Security Support Provider (lsass.exe)
Manages security information stored on local and standalone systems.
Manual Manual Manual

NT LM Security Support Provider depends on the following service(s) to function properly:

  •  None

Service(s) that depend on NT LM Security Support Provider to function properly:

Peer Name Resolution Protocol* (svchost.exe)
No information at this time
Not Installed by default. Install using Win XP Disc if needed Disabled

Peer Name Resolution Protocol depends on the following service(s) to function properly:

Service(s) that depend on Peer Name Resolution Protocol to function properly:

Peer Networking * (svchost.exe)
No information at this time
Not Installed by default. Install using Win XP Disc if needed, Not Installed Disabled

Peer Networking * depends on the following service(s) to function properly:

Service(s) that depend on Peer Networking * to function properly:

  •  None
Peer Networking Group Authentication * (svchost.exe)
No information at this time
Not Installed by default. Install using Win XP Disc if needed Disabled

depends on the following service(s) to function properly:

Service(s) that depend on Alerter to function properly:

Peer Networking Identity Manager * (svchost.exe)
No information at this time
Not Installed by default. Install using Win XP Disc if needed, Disabled

Peer Networking Identity Manager * depends on the following service(s) to function properly:

Service(s) that depend on Peer Networking Identity Manager * to function properly:

Performance Logs and Alerts (smlogsvc.exe)
Collects performance data from local or remote computers based on a predefined, schedule parameters, then logs or triggers an alert.
Manual Manual Disabled Performance Logs and Alerts depends on the following service(s) to function properly:
  •  None
Plug and Play (services.exe)
Enables a computer to recognize new hardware or existing hardware changes.

This is a must for everybody to leave the setting on automatic!

Auto Auto Auto

Plug and Play depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Plug and Play to function properly:

Portable Media Serial Number or Portable Media Serial Number Service (svchost.exe)
Retrieves serial numbers from portable music players connected to your computer. This service may also manage Digital Rights Management and copy protection. If Service Pack 2 is installed, this service is set from Automatic to Manual by default.
Manual* Manual* Disabled Portable Media Serial Number depends on the following service(s) to function properly:
  •  None
Print Spooler (spoolsv.exe)
Queues up print jobs in memory for "later" printing. This service is required if you have printers, even for network printers. You can place this service into manual, Then it should only start it up when printing is needed.
Auto Auto Manual

Print Spooler depends on the following service(s) to function properly:

Service(s) that depend on Print Spooler to function properly:

Protected Storage (lsass.exe)
Allows the ability to save local passwords. If you disable this service, you will no longer have any of your passwords saved in certain applications such as Outlook, Network connections, web sites information (AutoComplete) ect...
Auto Auto Auto

Protected Storage depends on the following service(s) to function properly:

Service(s) that depend on Protected Storage to function properly::

  •  None
QoS RSVP (rsvp.exe)
Provides local traffic control on a network using IPSEC and
QoS-aware applications.
Manual Manual Disabled

QoS RSVP depends on the following service(s) to function properly:

Service(s) that depend on QoS RSVP to function properly:

  •  None
Remote Access Auto Connection Manager (svchost.exe)
Creates a connection to a network when a program requests a remote
DNS or NetBIOS address. Some internet connection such as cable, DSL, dail-up may require this service. This service is not needed for hardware gateway or routers.
Manual Manual Manual

Remote Access Auto Connection Manager depends on the following service(s) to function properly:

Service(s) that depend on Remote Access Auto Connection Manager to function properly:

  •  None
Remote Access Connection Manager (svchost.exe)
Creates a network connection. Some internet connection such as cable, DSL, dail-up may require this service. This service is not needed for hardware gateway or routers.
Manual Manual Manual

Remote Access Connection Manager depends on the following service(s) to function properly:

Service(s) that depend on Remote Access Connection Manager to function properly:

Remote Desktop Help Session Manager (?)
Manages and controls Remote Assistance.

This is good for the ability for someone to connect to your desktop to provide you assistance if needed, or vice versa. Also replaces the need for Netmeeting to perform this task.

Manual Manual Disabled

Remote Access Connection Manager depends on the following service(s) to function properly:

Service(s) that depend on Remote Access Connection Manager to function properly:

  •  None
Remote Procedure Call (RPC) (svchost.exe)
Practically everything depends on this vital service to be running. you cannot disable this service. But if for whatever reason, the service became disabled and you can no longer boot your system, please read the information here for a way to fix it.
Auto Auto Auto

Remote Procedure Call (RPC) depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Remote Procedure Call (RPC) to function properly:

Remote Procedure Call (RPC) Locator (locator.exe)
Manages the RPC name service database.
Manual Manual Manual

Remote Procedure Call (RPC) Locator depends on the following service(s) to function properly:

Service(s) that depend on Remote Procedure Call (RPC) Locator to function properly:

  •  None
Remote Registry Service (svchost.exe)
Enables remote users to modify registry settings on this computer. If this service is stopped, the registry can be modified only by users on this computer.

This is only good for if you need someone to fix or repair your registry via Remote Desktop Help Session Manager. But when not in use disable this service.

Not Available Auto Disabled

Remote Registry Service depends on the following service(s) to function properly:

Service(s) that depend on Remote Registry Service to function properly:

  •  None
Removable Storage (svchost.exe)
Used for managing removable media. Such as devices like tape backup, Zip drives, jump drives etc... Internal CD ROM / DVD drives usaully do not require this service but with some it may fix problems like no auto play.
Manual Manual Manual

Removable Storage depends on the following service(s) to function properly:

Service(s) that depend on Removable Storage to function properly:

  •  None
RIP Listener (svchost.exe)
No information at this time
Not Installed by default. Install using Win XP Disc if needed, Disabled

RIP Listener depends on the following service(s) to function properly:

Service(s) that depend on RIP Listener to function properly:

  •  None
Routing and Remote Access (svchost.exe)
Allows the ability for computers to dial in and access a local area or network computer through a modem using a standard or VPN connection. If you installed Service Pack 2, this service is set from Manual to Disabled by default on Windows XP Pro
Disabled* Disabled* Disabled

Routing and Remote Access depends on the following service(s) to function properly:

Service(s) that depend on Routing and Remote Access to function properly:

  •  None
Secondary Logon (svchost.exe)
Enables starting processes under alternate credentials.  It allows a  user a limited account to start an application or process as if you had higher privileges, such as the Administrator account. If you right-click a file, the context menu will display "Run As" option. If the service is disabled that function will no longer be available.
Auto Auto Disabled Secondary Logon depends on the following service(s) to function properly:
  •  None
Security Accounts Manager (lsass.exe)
Similar to Protected Storage, it saves profile and security information for local users.
Auto Auto Auto

Security Accounts Manager depends on the following service(s) to function properly:

Service(s) that depend on Security Accounts Manager to function properly:

Security Center * (svchost.exe)
Monitors the status of Automatic Updates, Windows Firewall and virus protection software. It is displayed in the system tray. If you choose that you do not need this service, disabling this service is not enough. Upon booting your system, this service will again be placed into automatic and started. To further disable this service:
Start > Control Panel > Security Center and click where it says "Change the way Security Center alerts me." In the resulting dialog box, uncheck Firewall, Automatic Update and Virus Protection.
Auto Auto Disabled

Security Center * depends on the following service(s) to function properly:

Service(s) that depend on Security Center * to function properly:

  •  None
Server (svchost.exe)
Supports file, print sharing over the network for this computer.
Auto Auto Disabled

Server depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Server to function properly:

Shell Hardware Detection (svchost.exe)
Adds the ability to auto play devices like memory cards, CD's DVD's, etc.
Auto Auto Auto

Shell Hardware Detection depends on the following service(s) to function properly:

Service(s) that depend on Shell Hardware Detection to function properly:

  •  None
Simple Mail Transport Protocol (SMTP) (inetinfo.exe)
This service (usually not needed) may support the use of sending outbound E-mails on some servers.
This feature is not available on Windows XP Home or installed by default on Windows XP Pro.
NA Auto Disabled

Simple Mail Transport Protocol (SMTP) depends on the following service(s) to function properly:

Service(s) that depend on Simple Mail Transport Protocol (SMTP) to function properly:

  •  None
Simple TCP/IP Services (tcpsvcs.exe)
Supports the following TCP/IP services: Character Generator, Daytime, Discard, Echo, and Quote of the Day.~
This service supports some older UNIX networking
systems
Not Installed by default. Install using Win XP Disc if needed, Disabled

Simple TCP/IP Services depends on the following service(s) to function properly:

  •  AFD Networking Support Environment

Service(s) that depend on Simple TCP/IP Services to function properly:

  •  None
Smart Card & Smart Card Helper* (These services has been combined  when Service Pack 2 is installed) (SCardSvr.exe)
Supports the use of a Smart Card for local or network computer authentication.
Manual Manual Disabled

Smart Card & Smart Card Helper* depends on the following service(s) to function properly:

Service(s) that depend on Smart Card & Smart Card Helper* to function properly:

  •  None
SNMP Service (snmp.exe)
Monitors the activity in network devices and report to the network console workstation.

This service has nothing to do with sending outbound e-mails using e-mail applications

Not Installed by default. Install using Win XP Disc if needed, Disabled

SNMP Service depends on the following service(s) to function properly:

Service(s) that depend on SNMP Service to function properly:

  •  None
SNMP Trap Service (snmptrap.exe)
Receives trap messages generated by local or remote SNMP agents and forwards the messages to SNMP management programs running on this computer.

This service has nothing to do with sending outbound e-mails using e-mail applications

Not Installed by default. Install using Win XP Disc if needed, Disabled

SNMP Trap Service depends on the following service(s) to function properly:

Service(s) that depend on SNMP Trap Service to function properly:

  •  None
SSDP Discovery Service (svchost.exe)
Locates UPnP devices on your home network. it detects and configures UPnP devices on your home network.
Manual Manual Disabled

SSDP Discovery Service depends on the following service(s) to function properly:

  •  None

Service(s) that depend on SSDP Discovery Service to function properly:

System Event Notification (svchost.exe)
Notifies COM+ Event when it tracks events such as Windows logon, network, and power events.
Auto Auto Manual

System Event Notification depends on the following service(s) to function properly:

Service(s) that depend on System Event Notification to function properly:

  •  None
System Restore Service (svchost.exe)
This service creates system restore points, which allows you to roll back your system to an earlier point. Just in case a problem were to come about. Such as recently installed a "bad" driver and or program etc.

NOTE: If you disable this service, your previous "restore points" will be deleted! System Restore Service uses a LARGE amount of disk space to store restore points.

Auto Auto Disabled

System Restore Service depends on the following service(s) to function properly:

Service(s) that depend on System Restore Service to function properly:

  •  None
Task Scheduler (svchost.exe)
Allows a you to schedule "tasks such as maintenance utilities. If you choose you may want to do everything manually, in this case you can avoid having this service running.. Some third party software may depend on this service to be running such as virus programs etc..
Auto Auto Auto

Task Scheduler depends on the following service(s) to function properly:

Service(s) that depend on Task Scheduler to function properly:

  •  None
TCP/IP NetBIOS Helper Service (svchost.exe)
Provides legacy support for NetBIOS over TCP/IP. If your network does not use NetBIOS and / or WINS, disable this function.
Auto Auto Disabled

TCP/IP NetBIOS Helper Service depends on the following service(s) to function properly:

  •  AFD Networking Support Environment
  •  NetBIOS over TCP/IP
    • TCP/IP Protocol Driver
      • IPSEC driver

Service(s) that depend on TCP/IP NetBIOS Helper Service to function properly:

  •  None
TCP/IP Printer Server (tcpsvcs.exe)
Used for managing a local UNIX print server.
Not Available Not Installed by default. Install using Win XP Disc if needed Disabled

TCP/IP Printer Server depends on the following service(s) to function properly:

Service(s) that depend on TCP/IP Printer Server to function properly:

  •  None
Telephony (svchost.exe)
Provides Telephony API (TAPI) support for programs that  telephony devices, such as modems and some DSL connections . Also supports IP based voice connections on the local computer and or LAN connected servers that utilize this service.

If you connect using a hardware router or gateway, this service can be disabled.

Manual Manual Manual

Telephony depends on the following service(s) to function properly:

Service(s) that depend on Telephony to function properly:

Telnet (tlntsvr.exe)
Allows remote login to the local computer via the telnet function. For security reasons, disable this unless needed
Not Available Manual Disabled

Telnet depends on the following service(s) to function properly:

Service(s) that depend on Telnet to function properly:

  •  None
Terminal Services (svchost.exe)
Allows remote login to the local computer. Fast User Switching, Remote Desktop Connection and Remote Assistance is used in conjunction with this service. For security reasons, you can disable this service if not needed.
Manual Manual Manual

Terminal Services depends on the following service(s) to function properly:

Service(s) that depend on Terminal Services to function properly:

Themes (svchost.exe)
Manages XP "shell" & desktop themes on your computer. This service alone can use up to 12 MB of RAM, due to loading your selected theme into memory.
Auto Auto Auto Themes depends on the following service(s) to function properly:
  •  None
Uninterruptible Power Supply (ups.exe)
Supports the use of Battery backups (UPS)

USB UPS usually does not need this service, Unlike some APC UPS and UPS that may connect to a serial port.

Manual Manual Disabled Uninterruptible Power Supply depends on the following service(s) to function properly:
  •   None
Universal Plug and Play Device Host (svchost.exe)
Detects and configures UPnP devices on your home network. MSN Messenger uses this service in conjunction with supported UPnP devices, to provide support for networks behind a NAT firewall or router. Also, if you are experiencing difficulty connecting to multiplayer games that use DirectX(7,8,9), place this service to automatic and ensure you download all security updates. Note: UPnP is NOT PnP. Do NOT disable Plug and Play service.
Manual Manual Disabled

Universal Plug and Play Device Host depends on the following service(s) to function properly:

Service(s) that depend on Universal Plug and Play Device Host to function properly:

  •  None
Upload Manager
Manages synchronous and asynchronous file transfers between clients and servers on the network.~

This service not available after Service Pack 2 is installed
(svchost.exe)
Manual Manual Disabled

Upload Manager depends on the following service(s) to function properly:

Service(s) that depend on Upload Manager  to function properly:

  •  None
 
Volume Shadow Copy (vssvc.exe)
Manages Volume Shadow Copies used for backup such as Microsoft Backup and similar programs. Third party hard disk software ("ghost" or "imaging") may need this service to be running.
Manual Manual Manual

Volume Shadow Copy depends on the following service(s) to function properly:

Service(s) that depend on Volume Shadow Copy to function properly:

  •  None
WebClient (svchost.exe)
Enables Windows-based programs to create, access, and modify Internet-based files.~
Auto Auto Disabled

WebClient depends on the following service(s) to function properly:

  •  WebDav Client Redirector

Service(s) that depend on WebClient to function properly:

  •  None
Windows Audio (svchost.exe)
Manages audio for you computer. If you don't have a sound card installed in your computer, you can disable this service.
Auto Auto Auto

Windows Audio depends on the following service(s) to function properly:

Service(s) that depend on Windows Audio to function properly:

  •  None
Windows Firewall / Internet Connection Sharing * (svchost.exe)
This service is named Internet Connection Firewall/Internet Connection Sharing * on Service Pack 1a.
Allows multiple computers on a home network to access the internet under one account. It also
provides network intrusion prevention services for a home network, If you use Hardware router or gateway this service is not needed.
Auto Auto Auto

Windows Firewall / Internet Connection Sharing * depends on the following service(s) to function properly:

Service(s) that depend on Windows Firewall / Internet Connection Sharing *  to function properly:

  • None
Windows Image Acquisition (WIA) (svchost.exe)
Provides support and allows you to acquire images from such devices as scanners, web cams, and digital cameras.
Manual Manual Manual

Windows Image Acquisition (WIA) depends on the following service(s) to function properly:

Service(s) that depend on Windows Image Acquisition (WIA) to function properly:

  •  None
Windows Installer (msiexec.exe)
Installs, repairs and removes software according to instructions contained in .MSI installtions & files.
Manual Manual Manual

Windows Installer depends on the following service(s) to function properly:

Service(s) that depend on Windows Installer to function properly:

  •  None
Windows Management Instrumentation (svchost.exe)
Provides a common interface and object model to access management information about operating system devices, applications and services.

Not really need until Service Pack 2 is installed. because some newer and updated services will depend on this service, such as:

Auto Auto Auto

Windows Management Instrumentation depends on the following service(s) to function properly:

Service(s) that depend on Windows Management Instrumentation to function properly:

Windows Management Instrumentation Driver Extension (svchost.exe)
Provides systems management information to and from drivers.~
Not Available Manual Manual Windows Management Instrumentation Driver Extension depends on the following service(s) to function properly:
  •  None
Windows Time (svchost.exe)
Automatically updates your clock by contacting a server (Microsoft's server by default) on the internet.
Auto Auto Disabled Windows Time depends on the following service(s) to function properly:
  •  None
Wireless Zero Configuration (svchost.exe)
Provides automatic configuration for wireless network 802.11 adapters. If you do not have any wireless network devices in use on the local system, you can disable this service. Some "hot sync" software for a PDA, laptops may use the service.
Auto Auto Disabled

Wireless Zero Configuration depends on the following service(s) to function properly:

Service(s) that depend on Wireless Zero Configuration to function properly:

  •  None
WMI Performance Adapter (wmiapsrv.exe)
Provides performance library information from WMI HiPerf providers.~
Manual Manual Disabled

WMI Performance Adapter depends on the following service(s) to function properly:

Service(s) that depend on WMI Performance Adapter to function properly:

  •  None
Workstation (svchost.exe)
Creates and maintains client network connections to remote servers. If this service is stopped, these connections will be unavailable.~
Auto Auto Automatic

Workstation depends on the following service(s) to function properly:

  •  None

Service(s) that depend on Workstation to function properly:

World Wide Web Publishing * (inetinfo.exe)
Used for setting up a local web server.
Not Available Not Installed by default. Install using Win XP Disc if needed Disabled

World Wide Web Publishing depends on the following service(s) to function properly:

Service(s) that depend on World Wide Web Publishing to function properly:

  •  None

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