I have a upgrade scenario and am wondering about the AD Schema.
Current version is 4.05 and I am going to version 4.2. Both verisons will have Unified Messaging.
The Unity 4.2 will be installed on a new server. The installation will involve installing 4.05 on the new server, doing a DIRT backup/restore, then upgrading the new 4.05 to 4.2.
Current Exchange server for 4.05 is exchange 2000
The exchange 4.2 is going to be connected to an Exchange 2003 cluster.
Both versions are connected to the same AD forest.
Since the 4.05 is running exchange 2k and the 4.2 is going to be connected to exchange 2k3, do I still run the AD Schema setup for version 4.2? I suspect I do, but will that affect the operation of the Unity 4.05 that is still running?