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If I run the
assoc command-line utility for an extension, it shows the file type/description for the extension I set in the registry. But if I go to Control Panel -> Default Programs - Set Associations then I see a different description and default program.
It used to be that setting the two keys:
HKCR\.ext(default) = Identifier
- Identifier (default) = "File Description"
- \DefaultIcon (default) = Some icon
- \Shell\Open\Command (default) = Some editor
But now it appears there is an override elsewhere, which is what gets displayed in the Default Programs listing.
My question is, where i this overridden association information stored? I'm assuming it is in the registry, but I don't see it in the keys I expect it to be. I believe this was changed in the Vista time frame, but it may have been in XP too.
Update: Since there is some confusion, do the following test. Rename a file to some new extension. Create an association in the registry keys mentioned above. Then right click on the file, Open With and select a different program (checking to make it the default). Now check the registry. It is unchanged, but now the file is associated with a different description, icon and default program.