Exchange Server Application Analyzer 2003 for Lotus Notes - the name itself is enough to make you worry. If you follow the link you'll read that this little app is supposed to gather info in order to help Microsoft with your Lotus Notes -> Exchange migration. There's also another application called the Data Processor:
Data Processor. This separate module is available only as a service offering from either a Microsoft Certified Partner or through Microsoft Services.
I'm gonna have to download that. I can't wait to run the Analyzer on some of my applications and see what the processor has to say. I'm hoping I can get a couple of "ERROR NO WAY IN HELL YOU CAN EVER DO THIS WITH EXCHANGE" messages out of it.