The following is the fix taken from Espol on the MediaBrower web site.
- Open regedit goto HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall if there is an InstallLocation string listed there (not within any of the folders under Uninstall), just delete it
- If you have a 64bit Windows, also goto HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall repeat the same thing here.
It was at this second location I found the offending entry. So many thanks to Espol.