Zback 2.80.0.d 

Zback - portable backup and synchronize tool for Windows.

Purpose:
1) Synchronize directories for routine backup, for example between hard drive and USB drive or synchronize two computers via USB drive.

2) General purpose backup and restore utility on local drive or LAN

Features:

portable - no setup needed. Works from USB stick, does not write to the registry
backup/ synchronize to local drives or network computers (LAN)
Unicode support for foreign characters in file names
copy modes: update files, mirror source to target, synchronize, dated backup, restore
filter files based on extension, size, date, subdirectories
preview and execute operation
save backup scripts for routine backups
manual, batch or command line operation
small size
there is also version with installer available from homepage


http://titan.fsb.hr/~dzorc/zback.html