Ever encounter a really screwed up system where the file association sucks? For example, opening a ZIP file, it goes ahead and launches Acrobat reader... Ya, I think you know what I mean. And worse of all, not everyone has the power to go change it in the registry and ever so it may not solve the problem at all.
According to various forum, one way to save it is to set:
"NoFileAssociate" value DWORD=0
at these two keys:
But if you notice, when you run regedit in admin mode, the current_user is admin, and not whatever user you may be. Also, let's say you do not even have admin right, then what? Come to think of it, how the hell did you manage to mess it up so badly?
If you are not admin and you manage to mess it up, it can only mean that you have the power and thus the responsibility to set it right. I am going to show you one of the way which I found out that works.
Find one of those file you need to associate. Create a fake one if you have to. Right click on it, Property.
Now, do you see the change button there? I had tried even in non-admin mode that the button is not disabled. So go ahead and use that to change it to whatever you need.
Another way which did not work for me is to go to any explorer window. Tool->Folder Option. Click on the File Types tab and there you can see the buttons Change as well. But for my non-admin case, the button is disabled and getting it enable is more trouble than worth it.
In any case, I hope this helps you. Drop me a comment if you find it useful.