Hello, I want to upgrade an Exchange 2000 server to Exchange 2003. The upgrade will be performed on the same machine. Right now I have GroupShield 5.2 and GFI MailEssentials 9 running to protect Exchange. My question is how to deal with those two applications during the upgrade? Should I uninstall and reinstall after or just stop and disable the services? For MailEssentials, GFI recommends to backup the config files, uninstall and reinstall in the same folder after upgrade, but I'm not sure what to do with the antivirus. Any suggestion or advice will be appreciated, Thank you, Cristian Bratu