Internet Maniac

Internet Maniac - description from Softdepia.com:

This program includes a whole bunch of network utilities. It was written in C using win32 API. It calls winsock.dll directly and does not use any third party custom control or dll. I wanted this application to be small and fast. It is a freeware program.

Internet Maniac is a "Free to try" program. You can download and try it for an evaluation period.