We are attempting to install Exchange 2010 on a 2008 R2 server with an Exchange server 2003 on Server 2003. After running pre-deployment analizer it reports the following.
Server nirvana.mydomain.local is running Exchange Server 2003, but has not been upgraded to Service Pack 2 or later. Exchange Server 2010 installation will be blocked until this server is upgraded.
We have reinstalled SP2 twice now but still get the same result. There must be a registry key not being updated by if so which one.
Thanks for your help in advance.