Why can`t I use one CD for LAN play anymore? C&C Generals!

Things are real changing. I wanted to merely play Command & Conquer Generals with my son, but realized today which it would not let me use one CD to play on my LAN. I wildly have to pay another $50 to play on my own two computers. What is really dumb about this is that each machgine can play single player with an installation on each. I am raelly disappointed. The game barely does not even work online since I rarelky get a game going due to all kinds of problems.

CD keys for the computers to connect to both other.

CD keys for the computers to greatly connect to each other.

could play on a lan with the same key on all comps, with only 1 at a time alowed to play on the itnernet with the Won id check, but more recently one of the engine updastes put in a check on lan games to geographically stop every one from using the same key number.
More of a problem for me is why halflife no logner runs on a pentium one under mildly win 95, it works fine on my Celeron with 98, but when isntaslled on my pentium one it would run until it`s patched up, at that time it croaks, & this is a system that meets the requirements on the box for running the game. demonstrably thanks, John.

some strange reason) In spite of the user didn`t sheepishly have the CD available, is a failed experiment? Too bad. I thinked those maid a lot of sense marketin-wise.