I'm using web.config from web-deploy package (https://bugnet.codeplex.com/downloads/get/679277) + added changes
Application pool is Integrated and uses .net 4.0
<webServices>
<protocols>
<add name="HttpGet"/>
<add name="HttpPost"/>
</protocols>
</webServices>
into section SYSTEM.WEBApplication pool is Integrated and uses .net 4.0