If you use AVG and set resident scanning to scan on CLOSE, then you may experience microsoft app error reporting popping up after exiting outlook with the email plugin enabled. Seems to be elicited by a timeout error or just scanning on closing (turning off scanning on close removes this problem).
Instead of messing with the registry or downloading the developers toolkit, which MSDN suggests you do to turn off this annoying feature, set "Microsoft Application Error Reporting" to KILL in ZA does the job well.
Wonderful tool. Love it.