hi there i think i might have a little something for you my friend! better late than never! just stumbled across this page and registered to help!
go to this website and download the free trial software version on http://www.taltech.com/products/tcpcom.html
its a program that makes your computer think your tcp/t1 line is a serial line.
so you can have a lan game but i think only two computers but thats better than nothing!
the only other major draw back is that the trial version only works for 1 hour then you have to load it up again. so basically restart the program and c&C everygame but an hour is enough for a good game!
ill stop blabbbing.....basically download the v2 program on that website...install and then run the program.
heres another link to the page on how to set it up. really easy!
http://www.planetcnc.com/features/techtroopers/tibdawnOverTCP/
just need your ip, select a com port (3 is best) and chose which computer the host! set the baud rate as the highest
SO HERES THE BASIC THEN IM OFF
INSTALL YOUR GAME USING ALL THE COMPATABILITY OPTIONS EVERYONE SHOULD KNOW ABOUT DURING THE INSTALLATION AND ON THE LAUNCH .EXE
THEN DOWNLOAD AND INSTALL THE TCPCOM PROGRAM ON BOTH COMPUTERS
REBOOT
RUN THE TCPCOM PROGRAM AND PUT SETTINGS AS
USE THIS COMPUTER AS HOST
COM PORT 3
BAUD *HIGHEST*
AND ACCEPT
SET THE OTHER COMPUTERS AS THE CLIENT OBVIOUSLY
THEN WHEN YOU RUN THE GAME CHOOSE THE MULTIPLAYER AND MODEM/SERIAL AND CHOOSE SAME COMPORTS AND HIGHEST BAUD THATS ALL YOU NEED THEN CHOOSE SERIAL GAME
AND AWAY YOU GO! check out the second web adress i gave for the more in depth instructions if your unsuccessful
all my luck with you! it took 8 years for me to get this game running again! how sad! spread the word! IT WORKS!
any other questions email me at glen.brooks1@btinternet.com