The Universal TCP/IP Network Bootdisk is a DOS bootdisk that provides TCP/IP networking support. It's designed for use in Microsoft networking environments, on either peer-to-peer or domain based LANs. Currently 98 different network card drivers all included, all on the single 1.44MB disk! Most people use this bootdisk for "Ghosting" PC's over a network connection. This disk will provide the DOS networking and drivers to allow the mapping of a network drive containing your imaging software and files. TCP/IP based image transfers, like GhostCast is also supported!
NetBootDisk was first created in December 2001.
For a complete change log / release history, you can go through this OCAU thread. The latest 6.5 version was last updated quite some time ago on 23 May 2010.