Error in my windows..... Please help me getting out of this... None of my windows explorer is being opened...... showing error......"No such interface supported" When I play a song or video no sound is coming out for my speaker.... But windows sounds like starting windows or shut down or error tone is playing properly..... It is after I uninstalled "MSXML 4.0 passer" by mistake..... What do I do now..... Any other application is running fine, except WMP........