So i figured i'd save everyone some time.
Basicly. All the CD-KEYS are physically entered / generated on ea's server in a mysql database, these keys are the same keys that are given out via fileplanet. There is more than likely no way you will ever get a legit key, generated.
What exactly are you trying to crack? The key can be changed in regedit, by simply searching for it. It's under;
HKEY_LOCAL_MACHINE/BCD00000000/SOFTWARE/Electronic Arts/EA Games/Red Alert 3 Beta/ergc
the default key will have the key listed under Data without the -'s in between.
If you install the beta with any of these keys;
8TDM-XTXA-9FYJ-3XTE-FH9R
JQBB-WLUX-H6V4-ZPRK-QVV2
PXGQ-3HQ4-6YLY-2LSN-CT82
WUU4-DTZ6-5VS8-2WCV-D9XB
F6XP-SVQK-E9LE-92D8-HPK8
GAPP-9SHC-ALTK-TQVV-DYGR
It works fine, however you will never get on EA Servers, ever in your life. so theres no point in wasting your time trying.
Crack the main menu with;
RapidShare: Easy Filehosting
then open up a lan game and play via lan or install a virtual lan, something like LogMeIn Hamachi works fine, its free, and supports 16 people, the premium one works for 30 days, and supports 64 people, that allows for a pretty decent ammont of people. I doubt you will get more than that on anyway.
If you get cdkey in use or cdkey conflict, while in the lan session or over the internet via hamachi. then its real easy, just go change a character in the registry under the location above. And it works fine, no more conflict.
You will never be able to clone an ea server or get on with anything besides a legitmate key, so don't even try. stop wasting your time people, the answers already above, and it works great, theres nothing further u can really do.
Goodluck.