Fresh Windows 7 installation. I gave "everyone" "full control" to drive D:. When I print from Firefox to a PDF document on D: everything is peachy. If I try to do the same thing from IE9 I get a message
You don't have permission to save in this location.
Contact the administrator to obtain permission.
blah-blah
So it's not the PDF printer driver which doesn't have permission, but IE. How can I give IE (and if possible all my applications in one go) permission to write anywhere? Read: I don't want to see that warning ever again.