The GUiPeX software has its name related to GUI which means Graphical user interface and another software named UPX. The UPX is a command line tool which runs in the DOS environment which comes for free. This is an executable packer which supports many different formats which is both portable and extendable. The compression ratio is excellent with a fast decompression. While compression and decompression, the executables remain the same with no loss. This software was used by the developers to compress their software and programs to make to small in size. They then distributed this to their customers and also used it to post programs on the internet.