sharing revenue with users?

From InfoWorld:

Microsoft will share a part of its advertising revenues from its search engine with users, the company's chairman Bill Gates said in a panel discussion on an Indian television channel.

Gates said that search engines like Google Inc. get their revenues from advertising because people use these search engines.

Does it sound weird? So we will receive cash by using softwares from Microsoft, is it right? That's Microsoft get their revenues from softwares because people use their softwares. Reasonable inference?