Yes, try uninstalling and reinstalling KT. Many times, KT gets lost in paths, or perhaps you move something... long story short, uninstalling, reinstalling and repathing occasionally helps KT keep chugging along. If you installed your game in a compatibility mode, you should install your KT the same way. You should also make sure that you have all of the OLD .NET frameworks installed, all the way back from 1.0. KT depends on those libraries, without them it is a broken tool. Simply installing the most recent .NET framework will not accomplish this for you.
Want to play a game of ME3MP?
Qui-Gon_Glenn on the software of which we shall not name.... add me and the enemy shall fall in chunks of crimson salsa