I downloaded one ZIP folder and extracted it in Windows 7. After extracting it shows the file names in green.
Now when I try to open any file, it gives me an Access Denied error. I even set the permissions on that file for full control, but I get the same error.
When I extract the same folder in Windows Vista or XP, I don't get any error.
The file attribute is AE and when I right-click it and select Properties » General » Advanced, the Encrypt contents to secure data option is selected.
When I uncheck this option, I can't apply it – again it gives me the permission denied error.