IIS

Forum för IIS :http://forums.iis.net/

ASP.NET 3.5 och server extensions i IIS: 3.5 måste installeras efter 2.0, bägge ska med andra ord vara installerade. När man sedan väljer server extension för siten så finns inte 3.5 att välja, men den ingår automatiskt när man väljer 2.0. Se denna text från iis.net http://forums.iis.net/t/1133618.aspx

Hi All,

As for ASP.NET 3.5, it is still based on the ASP.NET 2.0 core fundamental.
Therefore, there is no new application type(for ASP.NET 3.5) in IIS, still
use the 2.0 one. And when you developing ASP.NET 3.5 application(which use
those 3.5 specific features such as AJAX or LINQ), VS 2008 will help you
add the proper assemblies reference in project and those assemblies are the
most imporant things to help you deal with 3.5 stuffs. And when deploy to
IIS, you still use 2.0 version tab to configure it.

If you have any further questions, please feel free to post here.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead