Sorry this is my first post, but I'm having trouble with the status "Not Lockable" in Mapsource when using the GMAP folder downloaded from the top of this thread. I have run all the GMAP unlockers listed here and they report back positively, but Mapsource continues to show "Not Lockable" for status. The GMAP folder is stored under %APPDATA%\GARMIN\Maps\ and I have also tried C:\ProgramData\Garmin\Maps. Nothing seems to be working and I'm getting a tad frustrated.
Running Windows 7 x64, patched Mapsource 6.16.3.