Map extensions on IIS7

Hi.

How can I configure IIS 7.0 to handle .html page extension?

I tried to go on "Handler Mappings", to add "*.html" and associate
it ASP.NET 2.0 ISAPI filter and add the handler to the web.config
in the ASP.NET application but requests cannot arrive to the handler.

Thx!
Matteo Migliore.