Hi Tech, I'm not a computer guru or anything like that, I was just grabbing at straws, but it just seems odd that such a sophisticated piece of software like this would not have some sort of code that will not accept a crack or keygen.
I'm not a hacker too... but, as far I can know, there isn't single an useful program that is not cracked/keygened. So, why the effort?
Microsoft failed with Genuine Windows this year, Symantec failed with its activation process (so Microsoft too)...
Some programs are well-known difficult to crack: Webroot Spyweeper (can't update) and Spector (a keylogger, when connected to Internet the authenticity is checked). The mechanisms used by these two programs could earn to Alwil an extra level of protection. But, as far I know, they won't walk this way... Why? Maybe because the Home (free) version of avast is the best competitor of the Professional version