I had seen a file named wmpnscfe.exe in the msconfig service. I had locate the files in c drive of windows and delete. But it comes back again. I delete it two there times. But every time of fresh boot up it comes ups again. The windows media player is also still giving an unexpected behavior. Its performance is low. I think some type of virus has corrupted my media player. Because recently I had download a visualization for the player. It was working as normal as before. But in a matter to time I getting trouble out of it. Can anyone tell me what is wmpnscfe.exe file. Help.