>Did I not see at one time a dot reg file used to remove keys as well as add them? I am trying to remove keys for a rental return issue and I was hoping that someone knew the reg file syntax to remove/delete keys.
>

.REG files can't delete keys. You have to use INF files, which have a different syntax than the standard .REG file.

You'd be better off writing an uninstallation module to handle the issue.