I think you're going to have to put on your mechanic's hat and get under the hood.
I did a quick search for "windows 7 explorer unable to open zip files"
and found:
http://answers.microsoft.com …5b-e011-8dfc-68b599b31bf5![]()
There's probably an answer to your problem there, or maybe in the results of another search. Bottom line, I think, is that your Windows installation is damaged but can be repaired.

) this is not a zip, it was just titled that. Anyhow, I down loaded and ran whatever the registry thing was and Voila' "extract all" is now an option when I right click on a zip! And I can now do a straight import into LR just as it should be done. This is close enough for me! Again, thank you, thank you, thank you!!! You folks and POTN are such an incredible resource.
