Microsoft attacks the GNU Public Licence, claiming
that it cannot protect the intellectual property of private and
public software houses. But even the Software & Information
Industry Association (SIIA) criticizes Microsoft on this, saying
that "Microsoft is once again publicly making the case that
innovation in the software industry should happen only at the
discretion and direction of Microsoft, Microsoft is employing
public relations tactics to incite fear among businesses that
are considering migrating to the Open Source model."