Temporarily rename the current NAVIGATION.exe to something else, (NAVIGATION2.exe maybe?) then rename MobileNavigator.exe to NAVIGATION.exe and MobileNavigator.mscr to NAVIGATION.mscr
Copy NAVIGATION.exe/.mscr and Mortscript into this directory
Start the GPS app how you would normally, Nothing will happen!
Remove NAVIGATION.exe, NAVIGATION.mscr and Mortscript.exe
Restore the original NAVIGATION.exe
Try Primo again...
NOTE: This tool sets the system memory division to maximize the available RAM, It is a user adjustable setting, ie safe.