The data compression process is an important aspect that should be given a good
attention when dealing with slow computer networks. This paper introduces the design
and implementation of a transparent compression system that can be utilized by
Microsoft Windows to compress data exchanged among the computers through a Local
Area Network (LAN). On each machine, this system transparently intercepts outgoing IP
packets and compresses them. As well as it will transparently intercept incoming
compressed IP packets and decompresses them.