So you mean only Avast,AVG,Mcafee and pctools are on the US stock exchange?!!
Avira,Eset,Kaspersky,bitdefender,Unthreat,Comodo .... these europeans are not.
What about Americans? Norton,Adaware,Webroot, and even Microsoft Security Essentials ....
Sorry but that s weired.
And what about my second question? (Symantec way of restriction).Can Avast do the same way?