J7Z is an alternative 7-Zip GUI. 7-Zip is a high-compression file archiver designed by Igor Pavlov. Use J7Z if you want to: update existing archives quickly; backup multiple folders to a storage location; create or extract protected archives; and lessen effort by using archiving profiles and lists.
phpFileManager is a complete filesystem management tool in a single file. Features: server info, directory tree, copy/move/delete/create/rename/edit/view/chmod files and folders, tar/zip/bzip/gzip, multiple uploads, shell/exec, works on Linux and Windows, PHP4/5 and Apache2 compatible, and English and Portuguese support.
ZZIPlib provides read access on ZIP-archives. The library uses only the patent-free compression-algorithms supported by zlib. Functions are provided that transparently access files being either real files or zipped files, both with the same filepath. The zip-archive can be used in the place of a normal subdirectory. It is written in portable C.
No-install Unix Tools for Windows is a collection of 18 of the most useful Cygwin tools packaged into a single 1.1MB (floppy sized) EXE file that runs without any installation process. Simply running the executable instantly creates a Unix environment for Windows, without making any persistent changes to the underlying system. It includes bash, less, gzip, grep, find, df, du, ls, cat, cp, mv, ps, rmdir, mkdir, rm, pwd, and tar.
rsyncbackup is a handy tool for scheduled backups using rsync. rsyncbackup lets you easily setup multiple source folders and destinations, both locally, on your iPod or external firewire disk, or at a remote destination using ssh. rsyncbackup has no GUI, but is based on editing configuration files. The script is meant to be run in a crontab, so user interaction is not neccesary. Basic terminal skills are required to use the program.