Toad
When attempting to access the Database Browser window, an "Access violation at address 00D175F8 in module 'TOAD.exe'" results.
This is how to resolve the issue.
1. Exit Toad completely
2. In the Toad directory, delete the DatabaseBrowser.tdb and the Toad.ini files.
3. Log back into Toad and bring up the Database Browser window.
You may have to go through the same steps twice before the error is addressed.