Well I'm stymied by this. I am constantly having to repair my installation of Microsoft Outlook 2003. I can repair it one day and use it fine. I can even reboot that day without having to repair. However when I boot it up the next day, I am often faced with Outlook not working. It won't even launch in it's own "Safe Mode". So again, I have to repair it. Sometimes, even repairing won't work and I have to roll back to a previous restore point!
I suspect there's some other program killing one of the dll's or registry entries it depends on by I don't know of a good tool to easily track down and compare the dll's dependencies and take snap shots of what's on my disk. I'm up-to-date with service packs and patches and haven't found anything useful in the support knowledge base.
So if you know of a good tool, please let me know. It's getting to the point that I'm going to have to track down what's causing this.