Peer Networking Grouping (p2psvc) Service Defaults in Windows 7

Enables multi-party communication using Peer-to-Peer Grouping. If disabled, some applications, such as HomeGroup, may not function.

Default Settings

Startup type:Manual
Display name:Peer Networking Grouping
Service name:p2psvc
Service type:share
Error control:normal
Object:NT AUTHORITY\LocalService
Path:%SystemRoot%\System32\svchost.exe -k LocalServicePeerNet
File:%SystemRoot%\system32\p2psvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\p2psvc
Privileges:
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege

Default Behavior

Peer Networking Grouping is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Peer Networking Grouping service is started, it is running as NT AUTHORITY\LocalService in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If Peer Networking Grouping fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the p2psvc service is not running because of the error.

Dependencies

Peer Networking Grouping is unable to start, if at least one of the following services is stopped or disabled:

Restore Default Startup Configuration for Peer Networking Grouping

Before you begin doing this, make sure that all the services on which Peer Networking Grouping depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config p2psvc start= demand

3. Close the command window and restart the computer.

The p2psvc service is using the p2psvc.dll file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.