Setting default pdf reader
I'm trying to update the default pdf reader via GPP but am coming a bit stuck. I've set the option under User Config>Preferences>FolderOptions. I've added a new "Open with" value and given it the file extension and the program location of which it should be (in this case Adobe Reader) but it doesn't seem to work. If I tick run in users context it fails with access denied in event viewer. If I un-check the option event viewer shows it as sun successfully but doesn't actually change the default program.
I've just tried in on .txt file as well and although I thought it had worked it doesn't seem to work anymore.
Any ideas where I'm going wrong