Map HttpHandler

Question

Hello,

I need map HttpHandler on Handler.xml.
I wrote to web.config <add verb="*" path="Handler.xml" type="Handlers.Handler, Handlers"/> , but didn't work, when I rewrote path to Handler.ashx everything ran OK.
I also try map IIS, Home direcortory to .xml and still write Page can't load.

Thanks for help and ideas.
Tomas