'tcpport' is from Erik Engelke. You need the complete 'waterloo tcp'-Package if you want to modify tcpport.exe. See the file 'wattcp.txt' for copyrights and usage of tcpport! All x_*. files are my own. The Assembler-stuff is written for MASM 5.1 or quick-ASM. The Basic-Files and Libs are written for Quickbasic 4.5. (c) Nov '94, by khweis@mvmpc9.ciw.uni-karlsruhe.de