The problem appeared suddenly, choosing "choose program" from the right-click context menu causes notepad to launch and try to display the file. I've tried it on avi files, wmv, zip, rar. All behave the same, Choose Program triggers Notepad rather than displaying the selection list. The problem was dealt with here years ago, none of the sugggested solutions solved the problem. All the files I've tried this on have correct file associations, but if I decide that I want to open an avi file with say Gomplayer, when I go for Choose Program notepad opens. Any help wouldbe appreciated.Thanks in advance.