It supports files and folders multi-compression (UPX, ZIP, 7Z) and archives extraction (several formats). It includes an intelligent UPX compression mode, self-extracting archive creation, encryption/decryption, external compressors and much more.
AGfUPX is a nice GUI for UPX with many advantages. Selecting a file using drag & drop, shell integration (adding "Open with AGfUPX" option to the contextmenu of exe/dll files) and redirecting UPX output to a windows dialog box are only few of them.
PAT is a complete web application that allow to manage files (basic and advanced functions like compression in gz), ftp, and database all in one. Designed to reproduce a Graphical User Interface (GUI) with drop-down and contextmenu for easy use