There have been a load of different types of compression programs available for Windows, but Quick Zip is a little bit different for the fact that it is offered as a freeware application. 1 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Quick Zip Review - Download
Even though there are probably hundreds of different programs available, both paid and free, that can compress and decompress different types of archives, ArcConvert is another example of that. 5 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree ArcConvert Review - Download
An alternative to the 7-Zip file archiver application with support for many archive types including 7Z, RAR and ZIP: J7Z is an alternative to popular file archiver programs such as Winzip, Winrar, WinACE, etc. 234 KB | For Windows 7, Windows 8 / Vista / XPFree J7Z Review - Download
Create a file or files that cannot be compressed, mainly to test archive programs and antivirus apps: NonCompressibleFiles is a small portable program that allows you to create on the fly one or more non-compressible files, or maximum compressible files. 0.03 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Free alternative to WinZip: ZipItFree is a WinZip alternative built from the ground-up to be better, faster and easier to use than its commercial competitor. 4.13 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree ZipItFree Review - Download