Just purchased a MyGuide 4200. I believe it's running iGO s/w? Have tried running TT7 from the 2Gig SD card without much success. I have written a SHELL.ini file and copied it to the root of the SD. ( \Storage Card\MobileNavigator\MobileNavigator.exe ) but still the unit boots to the MyGuide & installed navigation s/w.
Apologies, forgot to include the 4200 spec
•300 MHz Processor
•Windows CE5.0 Operating System
•MyGuide 6.1 navigation software from Nav n ...