I'm trying to do as step 8 in post two says - I think it quite messy, but I have written this:
C:\Windows\System32\cmd.exe /C start "SWKOTOR" /D "E:\Star Wars Knights of the Old Republic\swkotor.exe" /high /affinity 1 "E:\Star Wars Knights of the Old Republic\swkotor.exe"
The E:-path is where my swkotor.exe-file is.
However, now I can't even start the game, and the logo has changed to a cmd-file (big surprise, but still

)