1)   PowerFolder 3.0.0
PowerFolder is a free tool to synchronize,backup,transfer,access and share files over the internet or local network. It can be used to exchange every type of data, for example - documents, photos, music, videos or project files.

 2)   SyncEXP 1.87
SyncEXP - SyncEXPERT's LAN Version (Freeware) - A small and powerfull piece of Windows application that can synchronize files and folders within a LAN or a single PC in a bliss. It works much faster and more versatile than pcAnywhere or gotomypc etc.

 3)   SyncEXPnet 2.21
SyncEXPnet - SyncEXPERT's WAN Version - A small and powerfull piece of Windows application that can synchronize files and folders in LAN or WAN over TCP/IP protocol. It works much faster and more versatile than pcAnywhere or gotomypc etc.