Hi guys,
I have a problem with the Map editor. No matter what i have tried, the map editor still didnt work for me. I have attached the error message i got when double clicking the Mapeditor.exe
Please help me solve this problem... PLEASE
Thanks

I know this is an old post, but I just recently bought Patrician 3, and had this problem. I run Windows 7 Professional 64 Bit, and could not get the editor to open for me. If you click the start menu icon, it will give this error. However, I was able to open it by going to the actual game folder and opening it from there. On my system it was "C:\Program Files (x86)\GOG.com\Patrician 3" and yours may be different depending on your system and where you installed the program. I hope this helps for anyone else that encounters this problem.