If you are converting an Access 97 database to Access 2000 format, you may
encounter the following error message:
The Visual Basic for Applications project in the database is corrupt.
This problem seems to come up only if the Access 97 is not in a fully
compiled state. Therefore, reopen the database in Access 97, and issue a Compile
and Save All Modules from the Debug menu in VBE before attempting
to run the conversion process again.
And as always, it's a good practice to try all such recovery steps on
a copy of the database.