I have a Excel97 doc with a boat load of VBA code. There are no Add-Ins. When it is opened in ExcelXP, I get a tiny error dialog that says: AddInError

Real informative huh?

I've seen a similar error when opening Excel97 doc in Excel95. That pointed to an the 97 automation reference not found in Excel95.

This error does not affect any functionality in the app, but it looks questionable to my users.