Peer Name Resolution Protocol - Windows Vista Service
Enables Serverless Peer Name Resolution over the Internet. If disabled, some Peer to Peer and Collaborative applications, such as Windows Meetings, may not function.
This service also exists in Windows 10, 11, 7 and 8.
Startup Type
| Windows Vista edition | without SP | SP1 | SP2 |
|---|---|---|---|
| Starter | not exists | not exists | not exists |
| Home Basic | Manual | Manual | Manual |
| Home Premium | Manual | Manual | Manual |
| Business | Manual | Manual | Manual |
| Ultimate | Manual | Manual | Manual |
Default Properties
| Display name: | Peer Name Resolution Protocol |
| Service name: | PNRPsvc |
| Type: | share |
| Path: | %WinDir%\System32\svchost.exe -k LocalServiceNetworkRestricted |
| File: | %WinDir%\system32\p2psvc.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The Peer Name Resolution Protocol service starts as NT AUTHORITY\LocalService and runs in a shared process of svchost.exe. If Peer Name Resolution Protocol fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the PNRPsvc service has failed to start. If you disable this service, then 2 other services will be unable to start (see the "Dependencies" section below).
Dependencies
Peer Name Resolution Protocol will not start, if the Peer Networking Identity Manager service is stopped or disabled.
If the Peer Name Resolution Protocol is stopped, the following services will not start and initialize:
Restore Default Startup Type of Peer Name Resolution Protocol
Automated Restore
1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestorePeerNameResolutionProtocolWindowsVista.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the p2psvc.dll file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows Vista installation media.