PROBLEM

• When upgrading Gorilla from 4.0 to 4.3 on Windows 64bit, you get an "error deleting virtualized key: -1" message.

CAUSE

We believe this happens during the database upgrade step in the Gorilla installation due to the version of Windows being 64bit.

SOLUTION

This error didn't seem to affect the installation or functionality of Gorilla, so no fix is needed.