I am having a Windows Xp computer at my that is using since a long time. It has never created a huge issue for me. But from yesterday, whenever i am trying to open any application, that opens in Windows Explorer, the system gives me an error message saying "Explorer caused an invalid page fault in PDM.DLL." and windows explorer gets crashed. Do you guys have any idea about this ? Please let me know how can i fix this error and also let me know what is PDM.DLL ?