gmax its the same but its different.its a older version of MAX.and yes you can download Max again but it wont work.because of the windows registry,it needs to be modiffied.or you can reinstall the windows after it expires
modifing youre windows reg its not illegal,it is illegal if you share it.that works like a reset function.you delete all the information max wrote in the registry,so when you enter again in Max will be just like in the first day Max was installed(30 days remaining trial)
nothing illegal,just cheating the days