This off another site so hope i can post ie if not just delete it
C:\Documents and Settings\admin\Application Data\TomTom\HOME\Profiles\m1xkagjq.default\extensi ons\Navcore.7.221.8572@tomtom.com
The home patch file offering on TTUser's latest Navcore version still works fine if renamed to the target filename, typically 7-221-8572-3.dll