MSIMN.exe error message

I have spent just about the entire day trying each and every way I can find of fixing this problem.

My Outlook Express program will NOT STAY OPEN! I keep getting the same error message: "MSIMN.EXE has generated errors and will be closed by Windows. You must restart the program. An error log is being created."

I have tried installing Internet Explorer v6. I have tried "editing regesteries". I have tried making sure all of the *.dbx files we not "read only". I just don't know what to try anymore. Now, half the time, when Windows shuts down my Outlook Express, it shuts down the entire computer as well. It will restart automatically, but when it does, I have to restart my active desktop as well.

Can ANYONE please help me??? PLEASE!?!?!?

Thanks
Strat95