Bitser is a free software designed for Windows operating systems. This tool allows you to manage and make a backup of your archive files, such as Winzip, Winrar or 7zip. The program was designed with a user interface similar to Windows Explorer, and all the underlying functions of archiving are performed using the open source software compression 7-zip, all major archive formats can be supported (ZIP, 7Z, RAR, ISO, MSI, GZIP, BZIP2, TAR, CAB, CHM and much more). In addition, the program also allows you to create backups of your data and encrypt your archives to protect the content (AES-256 bit). The proposed software is a free version for Win XP/2000/Vista and 7.