1)   Tech-FAQ.com Subnet Calculator 1.0
Subnet calculator for Microsoft Windows with support for CIDR (Classless Internet Domain Routing) and wildcard masks.
subnet calculator,

 2)   Advanced IP Address Calculator 1.1
It is a freeware Windows 95/98/NT/2000/XP utility that lets you to calculate every aspect of your subnet configuration in a few mouse clicks! It was designed for any network engineer who needs a fast way to determine subnets.
Supernet, IP calculator, Subnet calculator, CIDR, Subnet, host, Network type, host address range,