File Association Broken

In XP Home, I have an application that runs with a runtime version of
Panorama. Recently a problem has cropped up where double clicking on any
*.pan file gives the error message "not a valid Win32 application." Right
clicking the file to reset the application association does not work. The
"recommended application" is "InView" which is the name of the software that
should run. The executable file is panorama.exe, however, not Inview.exe, and
selecting "panorama.exe" in the dialog does not change the recommended
application.

I have found and deleted two entries in the Registry, one in Applications
that refers to Inview.exe (which is a non-existant file), and one in FileExts
that gives Inview as an alternate application for .pan files, along with
panorama. On reboot, the entries are still gone, but in the properties for
..pan files, they are still indicated as opening with Inview. Double clicking
on a .pan file rewrites the registry entries I just deleted. Attempting to
re-associate the file type with panorama.exe in the file properties also
rewrites the registry entries.

The file association mechanism seems to be corrupt. How do I fix this?

Philip


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