Sledge Hammer 2.2 is based upon Sledge Hammer 2.1 by Vinzz/WOW, which is based upon Sledge Hammer 2.0 Trap/Bonzai Sledge Hammer 3.0 does not in any way resemble the Sledge Hammer 1.0, 2.0, or 2.1 , so I don't count it as being in the Sledge Hammer family. This is an Equal Char Packer to which there are few equals (zipper5+opt /Oneway+Vision and ByteBuster4.x/Triad being the only I know of) Improvement and changes include : Bug fixed pack code scanner Shorter much faster depack in zero page No basic sys-line Automatic SEI/CLI detection Removal of non used code. Other than that, just cosmetic things. Why another char packer? Well, to meet my needs and some of a few others always searching for a shorter file. You may run tests on this packer, and find that other ones such as Superzipper v8, Lightemizer, Unipacker and other such packers beat it after packing. Just becuase they do, does not mean they are better! In fact, these packer are NOT packers at all, they also include Sequence Compressions, which in fact, interfere with a Cruchers ability to Crunch a file. So before you start hollering they are better, pack some files, and crunch them too with your favorite cruncher, and see which is shorter! In 90% of the cases Sledgehammer 2.2 beats them! I suggest good crunchers like , ByteBoiler, Beta-D 3.2, Darksqueezer, The Cruncher AB , or Cruel Cruncher 2.5! Fungus/Carcass