We have upgraded our Exchange 2003 Standard SP1 to Enterprise 2003 (needed the extra storage and did'nt feel confident in SP2 yet to let it enter production). After using the "re-install" option and Microsoft guidelines, the installation completes without any displayed errors. However, in the System Manager, it still displays as "standard", and we still have the 16 GB limit. Yes - it is the enterprise version (even tried to install from 2 different media). Have rebooted (a lot). Running on a Windows 2003 Std. server SP1. It's a Domain Controller. We are suing it in mixed mode together with our Exchnage 5.5 SP4. Tried to search Microsoft knowledge base, newsgroups etc without any solution. Any clues? (BTW: We are now running SP2 with out fingers crossed....)
I have seen something similiar before when the binaries updated and the database didn't. We reran the re-install and it upgraded cleanly the second time. Check the app event log when the IS Service starts to see it you get the database is limited message.
