Kaboodle is a LAN Management and LAN-to-LAN connectivity tool that
builds upon VNC's capabilities. With Kaboodle, you can:

* quickly and continously discover all VNC Servers on your LAN
* remotely install VNC onto PC's that aren't yet running it
* securely tunnel your VNC connections
* securely transfer files 
* setup a LAN-to-LAN connection, and then access all of the VNC
  Servers on your partner's LAN

Kaboodle is free, open-source, and Windows-only. Get it here:

                http://www.kaboodle.org

Note: Kaboodle is a product of Echogent Systems, Inc., which hosts
      this FAQ-O-Matic website for VNC.