NEXTLeadMail is an excellent tool of endless uses.
Free Accountability Software
NTCS: A Flow-based Network Traffic Classification System
Gameserver Protector
Internet traffic meter
RDP-based Remote Support through (most) firewalls
simple firewall Api implementation using Windows Server 2003 and XP
TCP/UDP endpoint analysis and mapping utility.
RHD to LHD spline & crossing converters for OMSI.
opnet project for WSN comb-needle model
Blog Commenting Tool