CCleaner same Registry Errors

Just realized that maybe this Post belongs in this Forum. New at this so not real sure.

Just recently started getting the same Registry errors, over & over again. I clean them and they're right back again, on the same day. Been going on for about a week now.

I keep getting:

- - - - - Problem - - - - - - - - - - - - - - - - - - - - - -Data - - - - - - - - - - - - - - - - - - - Registry Key

Invalid or Empty File Class - - - .dib\OpenWithProgids\OISbmpfile - - - - - HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.dib\OpenWithProgids

" - - - - - - - - - - - - - - - - - - - - - - .gif\OpenWithProgids\OISgiffile - - - - - - - HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.gif\OpenWithProgids

" - - - - - - - - - - - - - - - - - - - - - - .jfif\OpenWithProgids\OISjpegfile - - - - - - HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.jfif\OpenWithProgids

" - - - - - - - - - - - - - - - - - - - - - - .jpe\OpenWithProgids\OISjpegfile - - - - - - HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.jpe\OpenWithProgids

" - - - - - - - - - - - - - - - - - - - - - - .png\OpenWithProgids\OISpngfile - - - - - - HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.png\OpenWithProgids

Anyone have any idea What these are, and mostly WHY I would keep getting them over & over again?? Beginning to think there must be some settings that aren't quite right in the computer, but have no idea where to go and look or what needs changing. And I have no idea what Progids or OIS files are, or why they seem to have something to do with File extensions.

By the way, I'm running Windows VISTA.

Any help appreciated!!

THANKS!

Microsoft Office registered extensions. Usually when there's a Microsoft Update for Microsoft Office it will re-create those. You can exclude them by right clicking upon them in the registry cleaner since it's completely pointless to remove them since they'll only re-appear again, and again, etc.