I ran and merged that .reg file and I get an error message from Windows Media Player when I click a .mov link:
"Windows Media Player cannot play that file. The Player might not support the file type or might not support the codec that was used to compress the file."
So, I want to use VLC to play these files.
If I go to Start > Control Panel > Default Programs > VLC media player > Choose Defaults for This Program and click "Select All" and save the changes, VLC is able to open the file.
I've had Process Monitor
running while I did this and the only keys where RegSetValue is applied are:
I've also checked the HKCR keys in the registry after I've changed the default associations in the GUI. Those keys don't appear to change from their WMP associations.