XP Services
* Remote Procedure Call (RPC): Provides the endpoint mapper and other miscellaneous RPC services.
* Remote Procedure Call (RPC) Locater: Manages the RPC name service database.
* Remote Registry: Enables remote users to modify registry settings on this computer
* Removable Storage: Manages removable media, drives, and libraries.
* Routing and Remote Access: Offers routing services to businesses in local area and wide area network environments.
* Secondary Logon: Enables starting processes under alternate credentials.
* Security Accounts Manager: Stores security information for local user accounts.
* Server: Supports file, print, and named pipe-sharing over the network for this computer.
* Shell Hardware Detection: This provides support for docking a laptop or other related external hardware devices.
* Smart Card: Manages access to smart cards read by this computer.
* Smart Card Helper: Enables support for legacy non-plug and play smart-card readers used by this computer.
* SSDP Discovery Service: Enables discovery of UPnP devices on your home network.
* System Event Notification: Tracks system events such as Windows logon, network, and power events.
* System Restore Service: Performs system restore functions.
* Task Scheduler: Enables a user to configure and schedule automated tasks on this computer.
* TCP/IP NetBIOS Helper: Enables support for NetBIOS over TCP/IP (NetBT) service and NetBIOS name resolution.
* Telephony: Provides Telephony API (TAPI) support for programs that control telephony devices and IP based voice connections on the local computer and, through the LAN, on servers that are also running the service.
* Telnet: Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers.
* Terminal Services: Allows multiple users to be connected interactively to a machine as well as the display of desktops and applications to remote computers. The underpinning of Remote Desktop (including RD for Administrators), Fast User Switching, Remote Assistance, and Terminal Server.
* Themes: Provides user experience theme management.
* Uninterruptible Power Supply: Manages an uninterruptible power supply (UPS) connected to the computer.
* Universal Plug and Play Device Host: Provides support to host Universal Plug and Play devices.
* Upload Manager: Manages synchronous and asynchronous file transfers between clients and servers on the network.
* Volume Shadow Copy: Manages and implements Volume Shadow Copies used for backup and other purposes.
* WebClient: Enables Windows-based programs to create, access, and modify Internet-based files.
* Windows Audio: Manages audio devices for Windows-based programs. If this service is stopped, audio devices and effects will not function properly.
* Windows Image Acquisition (WIA): Provides image acquisition services for scanners and cameras.
* Windows Installer: Installs, repairs and removes software according to instructions contained in .MSI files.
* Windows Management Instrumentation: Provides a common interface and object model to access management information about operating system, devices, applications and services.
* Windows Management Instrumentation Driver Extensions: Provides systems management information to and from drivers.
* Windows Time: Maintains date and time synchronization on all clients and servers in the network.
* Wireless Zero Configuration: Provides automatic configuration for the 802.11 adapters.
* WMI Performance Adapter: Provides performance library information from WMI HiPerf providers.
* Workstation: Creates and maintains client network connections to the remote servers.
* World Wide Web Publishing: This service should only be disabled if you’re not running the personal version of IIS on your computer.





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Larry Miller on 12 Oct 2008 at 10:29 pm #
DO NOT DISABLE TASK SCHEDULER.
On systems prior to XP the Task Scheduler was only a convenience for users and could be safely disabled. This is no longer true. Disabling this service on XP or Vista will have serious consequences, although this will not be immediately obvious.
These systems schedule a number of system maintenance tasks to run every 3 days. Without the Task Scheduler these will not run. More importantly, Windows will be unable to add to, update, or delete files in the prefetch folder. Prefetch will be effectively crippled, leading to impaired boot and application launch times. Over time this may become severe.
Users must be very careful when disabling services. Microsoft documentation is not complete, many services do more than stated. Months after disabling service a new application or device may not work properly. A user will not likely connect this failure with a disabled service. In any event the benefits of disabling services is highly overrated.
Larry Miller
Microsoft MCSA