CabPack is a compression utility which creates Cabinet(CAB) files. You simply specify which files to compress, which compression method to use (MSZIP or LZX), where the output files should go, and whether or not the Cabinet files should span multiple disks.CabPack is able to store subdirectories, and depending on the platform you wish to extract the cabinets on, it can also create CAB files that contain long file names.