Garmin Mapsource download is available from Garmin’s website. Once you run the installer, there will be an error that a prvious version of Mapsource was not found, this will automatically quit the installation.
How to download and install Garmin Mapsource without the error
1 ) Download Mapsouce here.
2 ) Right Click the saved file and choose extract (You must have Winrar installed)
3 ) Run the MAIN.msi file located in the extracted folder and install it.
4 ) Run Setup.exe and install Mapsource.
5 ) Enjoy !
Here is a screenshot of Mapsource with a Philippines GPS Map loaded into it.