"Always use the selected program to open this kind of file" is greyed out - Here's the fix

By Zack - February 03, 2012

Problem:






























Solution:

Open Regedit, CTRL+ F... Type in "FileExts" to find this registry location:

"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts"


Find the file extension you are having problems with. In my example, I used .pl
Expand to view its sub-keys
Delete the sub-key "UserChoice"
Reopen the file... and choose the appropriate program :)

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