RPC Service – RPCNET.EXE
Rpcnet.exe will appear in your Windows\System or System32 folder. You may see it described as "Remote Procedure Call (RPC) Net". This Windows NT/2000/XP file is the Remote Procedure Call service. More information about this service can be found at http://support.microsoft.com/default.aspx?scid=kb;en-us;177446.
To find this file, maximize WinPatrol and click on "Services". Make sure you don't have "list non-Microsoft services only" checked. By default, it will run as "automatic".
Unfortunately, malicious programs can take advantage of a vulnerability in this service to access your computer. More information and necessary security patches can be found at http://www.microsoft.com/technet/security/Bulletin/MS04-012.mspx.
Safe
Microsoft