At least, if you have a 64 bit machine. Found the answer to how to get around this buggy feature at http://social.technet.microsoft.com/Forums/en/exchangesvrclients/thread/791aa00d-6e2c-43c9-9e7b-a57aeb71ada9:
In Vista 64, I just found an icon “View 32-bit Control Panel Icons” in Control Panel. And than I found “Mail” inside.
Tags: mail profiles, Vista