An engineer gave me a possible solution, but I don't have permission on my machine to test it. You can try the following:
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This is because of not having necessary permissions to edit the registry. To obtain the permission, follow following steps:
- Right click on “HKEY_CLASSES_ROOT\AcroPDF.FDF.1” and click permissions.
- On permissions dialog, click Advanced.
- In the new dialog, select Owner tab and make current user as owner.
- Click Apply and close the dialog.
- Close the permission dialog.
- Try editing the registry as suggested.