tried hard to do it myself and not being a techie I really struggled.
There are a couple of files to download and use, both of which are mentioned in the below text. Also some searching will find the locations of these files. If you get stuck I have them available and can send to you.
Because I was stuck I contacted the creator of the software who sent me the following instructions.
I wouldn't expect any problems with attaching map to Mapsource. I don't know, what went wrong, but most probably my GMapTool is missing a good manual. The simple instruction to attach a map is like that:
- Download GMapTool and cGPSmapper Free. Unpack both programs into convinient directory.
- Run GMapTool, this is GUI version of program. Go to tab "Options" and set option for cGPSmapper, you need to input full path and file name of cgpsmapper.
- Go to tab "Files", press "Add file" and input img file with your map.
- Go to tab "Split", input output directory for map for Mapsource. This should be empty directory, you can create a new one. Choose "Create files for Mapsource" and check "Compile preview map" box. You can add Mapset name but it is not necessary. Now press "Split all". GMapTool will create files for Mapsource.
- With Windows Explorer or other file manager go to output directory, you will find there file install.bat. Run this bat (click on it), it will install registry keys for Mapsource. Now Mapsource should see you map.
That's all. Remember that map attached with GMapTool will be missing address search and preview map will be very simple, consisting of only simple rectangles for each detailed map.
I used this less than a month ago to load Thailand map onto Mapsource prior to my forthcoming visit later this month. It works just fine. I'll happy to help where I ca but please remember it will be the blind leading the blind.
One important thing to remember is that you want only one mapset on Mapsource if at all possible. I have New Zealand maps and also installed Thailand maps onto the same Mapsource. It worked fine for a bit and I was able to switch between maps but then it started to go a bit crazy. I now have mapsource on two different laptops and one is for Thai whilst the other one is fo New zealand. Works like a dream now