I sometimes wonder if anybody reads my messages at all, but here goes again, because I can't let you guys suffer with C&C
Use Alcohol120%, it will allow you to run from the hard disk with ANY patch (even future ones), without any crack. In multiplayer too. I use the same technique for battlefield1942, and while everyone else is desperately looking for a new crack each time a new patch gets out, I can immediately join the newest version servers without a problem.