I think i figured out whats wrong, the WerFault.exe keeps starting within the same time as NS2.exe, so i think its my windows that keeps on blocking something, if i find out whats the problem i will post it here
in Steam Startup ProblemComment by DemminJanuary 2014
If I start it via the game folder the same things happen, the Taskmanager shows that the programm trys to start (the ns2.exe gets started) but nothing opens no window nothing and like 10-12 secs later the ns.exe is closed again, the strange thing is…