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Display Name (?):

Peer Name Resolution Protocol

Short Name (?):

PNRPSvc

Executable (?):

svchost.exe

Library (?):

p2psvc.dll

Depends On (?):

tcpip6, Peer Networking Identity Manager

Supports (?):

Peer Networking Identity Manager, Peer Networking

Description (?):

Enables Serverless Peer Name Resolution over the Internet

OS (?):

XP Home/Professional, Vista Home/Business, Server 2003, Vista Server

Startup (?):

Default	Home	Workstation	Server	Minimal	Tweaked	Automatic
Manual	Manual	Manual	Manual	Manual	Disabled	Disabled

Explanation (?):

The peer name resolution protocol service provides Windows a pseudo serverless based name resolution system that runs through TCP/IP version 6 (IPv6). A seed server is used to populate a peer cloud and these peers hold onto a portion of the name record. This service is installed when you install IPv6 so if you want to disable this service then I would suggest just uninstalling IPv6 from add / remove programs in the control panel.