When I upgraded from WB7 to WB8 and since, for some reason my Windows 7 OS changed the file association to Gimp.
Accessing file associations (through one of the many methods) and attempting to re-associate back to WB8 (and WB9).exe in the correctly reposited sub directory failed - WB8 or WB9 wasn't listed in the extended available file types and browsing to the executable file type and selecting it just didn't work.
Putting my thinking cap on, I was convinced it was a corrupted (not updated) registry key - so did some digging...
Sure enough, whack in the std regedit cmd and browse to HKEY_CLASSES_ROOT -> APPLICATIONS -> "your application" -> shell -> open -> command
right click - modify to correct path - and hey presto fixed.
But BE VERY VERY careful changing registry keys.
Anyway, just thought I'd share that.
