Are you saying to use those to reinstall the software after I delete the corrupted key?

Yes.

Isn't the USB Registry Utility to clean the registry?

No.

Are you saying that corrupted keys remain even after running that utility?

Yes.

Hopefully Handspring can help.. Sorry to call on you so much but this is the most frustrating computer problem I have dealt with in years.

No problem, glad to help. Let me know...