Maviarab,
Well, let's see, there's MasterSplitter for splitting and joining files (works great for mpgs, avi and others).
WinZip the old standby.
IZArc that handles a multitude of file compression types.
ZipZag the cat's meow of archiving / compression programs (pay, not shareware / freeware)
Most people still prefer the zip format but to each his own.
One day at a time....