Hello, I recently went through this same issue. This is a known issue with GroupShield 6.0 for Exchange. Mcafee has released a 'Patch 1' and several hotfixes working towards resolving this issue. They say they will have a service pack out hopefully soon, but in the mean time the Patch 1 and two hotfixes fixed me right up with the RPC errors. I would recommend contacting them directly to find out which hotfixes are right for the exact issue you are experiencing. It is my understanding that different hotfixes resolve different issues with RPC errors. Most of the fixes are in their download section after login with your Grant number. But some are on a per issue basis and they will email you the hotfix. Or just go back to GroupShield 5.2 SP1 until the Service Pack for GS6 is released. Hope this helps, Paul -----Original Message----- From: Hocine Yahi [mailto:hyahi@xxxxxxxxxxxxxxxxxx] Sent: Monday, April 26, 2004 4:50 AM Subject: RPCServ.exe Hi, I just upgrade to exchange 2003 and Groupshiel 6 sins the upgrade when i check running processes i see 5 x RPCServ.exe running. Is that normal of i have problem on my server. Kind regards.