Note:  Our maps are fully compatible with ALL versions of Garmin MapSource.

For the current version of MapSource, please see 

http://www8.garmin.com/support/download_details.jsp?id=209

While we recommend using MapSource Version 6.15.7 (less bloatware), our maps
function with all versions.

All Rotweiler mapset installers install the map(s) to Garmin's MapSource.  This is the 
Garmin proprietary software for viewing maps on your computer and for uploading
them to your GPSr.  MapSource is installed automatically by purchasing and installing
additional maps from Garmin. If you have not purchased additional maps, or are the owner
of one of the models of Garmin GPSrs (such as some StreetPilots and all Nuvis) which
do not come with software on disk, you may not have MapSource on your computer.

Garmin has made two options available to such users of their devices:
   1.  	You can contact Garmin technical support and request a copy of MapSource
		on disk (which Garmin may or may not do and may charge for); or
   2.  	You can download and install a MapSource substitute ("Training Center")that
		Garmin has made available on their website.  
	   
To download "Training Center for Windows", go to:
	http://www8.garmin.com/support/collection.jsp?product=999-99999-04"

After you have downloaded and installed "Training Center for Windows", go to:
	http://www8.garmin.com/support/download_details.jsp?id=209
		
and update it to the most recent version of MapSource.  This is critical - you MUST
update Training Center with a recent version of MapSource!  

We are told by users that the MapSource "Update" will actually install
without a previous version of MapSource being on your computer.  Apparently the "Update"
is actually a self-extracting file whose contents can be extracted with WinRAR.  After
unpacking the file, we are told you first run main.msi; then setup.exe 
and it will install.  We haven't tried that method, but it might be worth a try.