I was reading this forum here (
http://www.lucasforums.com/showthread.php?s=&postid=1555481) and I thought I should try it out. I ended up accidently putting the command prompt action in both folder files and regular files. now it won't open my files without right clicking, selecting open, etc. I would like to delete the command prompt action but I don't know how!
Did you save the text file that you created?
If you did, you can follow the path in the registry editor (regedit in the "open" dialogue in your start menu) and modify the keys directly.
If you're not comfortable editing your registry, you may be better off trying a System Restore first. If that doesn't work, then try the regedit. Make sure you create a backup of any keys you plan to modify with the "export" option under the File menu before you start. Save the backup to your desktop or My Documents, and if you screw something up, all you have to do is double-click on the backup to restore it. You should do this anytime you modify the registry.
For reference, I just checked my registry and I don't have a folder called "command" under "shell". What I would do is backup the "shell" folder, and then delete the "command" folder. Hopefully, that will set things back to normal (I'm assuming you're using WinXP - it may be different if you have Vista or one of the legacy OS'es).
If you still can't get it back to normal after trying this, PM me and I'll try to help.
Thank you! I was able to find the registry file that had the command prompt action. This is going to make my pathetic modding attempts easier. Thanks again.