Remove all references to Parallels 7 Windows 7 VM programs
I found a solution that may be specific to my setup, buy may be useful to others too.


I had moved the folder with the Windows applications shortcuts
elsewhere and had forgotten about it. I deleted this folder.
I deleted duplicates from Finder's 'Open With' menu using /System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user followed by sudo killall Finder. You may read more about it here.