1\Fault in RegTable,(checking the shortcut,if the key is not reasonable,then this possibility is true),then recovery your regtable(use the winhelp),caused most probably by installing of program or virus!
2\the shoutcut is ok,but the associated file is gone!try to find out if that file still located in disk(but different directory),you can try several shortcuts,I think you can find a certain directory was moved(if you computer is laptop with touchpad,it easy to happen),then you can try to correct that directory!
2\the shoutcut is ok,but the associated file is gone!try to find out if that file still located in disk(but different directory),you can try several shortcuts,I think you can find a certain directory was moved(if you computer is laptop with touchpad,it easy to happen),then you can try to correct that directory!