I was curious to know if Spybot scans inside .zip files or not?

I just downloaded a bunch of screensavers for my childrens puter and wanted to make sure they were clean before transfering the savers [their puter doesn't have internet access and therefore no security prog's on it].

Will Spybot do this or do I need to extract them first? Please tell me I don't have to install each one to find out for sure,

Thanks!!