C&CG HZ Serial
 

I'm using a key from a generator and also the nocd crack for the game. when i tried to play online it says "not a valid serial, try another". so, two questions:

how do i change the serial?

i couldn't find the crack for online game play, if there is one, is there a way to play it online?

Use an original key that will help.

yea that's why i ask the first question, the game doesn't seem to have a key change function. is reinstalling the only way? cuz that's a pain for me since it takes a long time to install on my comp.