I added a new SSD on my pc, and installed new OS(Win8.1) on there, however MTW2 was on a different HD and was untouched, I did not even have to reinstall. Vanilla MTW2 works fine, most of other games work fine, even Stainless Steel launcher worked fine, but when I try mods with the bat file it either doesn't start, or I run at as admin and I get the mentioned error. Do I have to bite the bullet and reinstall mtw2 anyway?
But still I am interested, why can't the bat file start the mod, and how in god's name is not possible to find medieval or kingdoms exe, I assure you they are there, I even deleted them and downloaded medieval.exe and did the whole spiel to get kingdoms.exe.
Obviously this is the Steam version, and I'm gonna try to "move" it around, see if it works.