ZipMadness allows you view the contents of zip archives. Also you don't have to extract the whole archive for getting single files. Simply drag and drop archive to ZipMadness and all files will be displayed.
What's new in ZipMadness
Now you can get single files without extracting whole archives.
I tried it, but it's worthless to me since it doesn't support 7-Zip. Evidently, it only supports plain old Zip archives, though I haven't seen one of those in a coon's age. So, I removed it.
I'll try it again and give it a star-rated review when it supports archive formats that I'm actually likely to download or compress for my own purposes.