The deployment guide is a bit vague when it comes to whether OCS should be installed on 2003 Enterprise or Standard and whether one is better than the other. Is it supported under both? Thanks.
Operating System
The minimum and recommended operating system platform requirements for all Office Communications Server 2007 server roles are as follows:
Minimum: Microsoft Windows Server® 2003 SP1.
Recommended: Windows Server 2003 R2 with SP2.