Socket Workbench 

Socket Workbench is the definitive tool for analysing socket communications that underlie the Internet and several types of inter-process communication.
sockets socket workbench udp socket tcp udp sockets tcp sockets packet sniffing socket protocols packet sniffer protocol analyzer protocol analyser tcp/ip networking sockets

ACiDDraw ANSI Editor 

A feature-rich ANSI text editing utility which lets you manipulate ANSI screen images. Supports ANS, ASCII, Pascal, C, ASM, COM, BIN & PCBOARD save formats. Also features 4 editing pages at 1,000 lines each, 160-column editing, VGA previewing & more.
acid productions aciddraw acid draw ansi editor ascii editor dos editor text editor screen editor pcboard support vga preview