You had errors in both cases, in first case: JOIN, probably the name of the output file is wrong
in the second case :SPLIT you havent added the map FID in the appropriate field and the files for Mapsource havent been created.
Install.bat is the installer to run to have your map in Mapsource and you'll find it in your output directory along the uninstall.bat
Better you look with care at Gmaptool tutorials.
here
[Only registered and activated users can see links. ]