Exchange 2003 and Terminal Server

Background: I had Exchange Server 2003 up and running fine. My boss turned the Exchange machine into the Terminal Server for the company after that.

Problem: When I open Exchange System Manager, it gives me an error message because Terminal Server loaded MAPI32.dll Version 1.0.xxxx into the C:\Windows\System32 folder and overwrote the Exchange MAPI32.dll Version 6.0.xxx. When trying to set client permissions on public folders, I get the error message telling me that I'm using the wrong version of MAPI32.dll.

Question: Is there any way to get these two programs operating together? I have renamed the old mapi and replaced it with the exchange version and exchange functions just fine, but TS doesn't. Is it impossible to have an Exchange Server and Terminal Server operating on the same machine?