问题
I had to delete my applicationhost.config, because VS 1012 didn't deal with it. How can I create it? thank you.
回答1:
Just run IISExpress and it will recreate the file for you. The exe is located at: "c:\Program Files\IIS Express\iisexpress.exe".
Hope this helps.
回答2:
After you deleted applicationhost.config
you do not need to run iisexpress.exe
manually, you can simply load your project in Visual Studio
and run it. Visual Studio will take care of that plus it will change applicationhost.config
with settings for that project specified in project Properties window (not mouse menu properties).

It will add corresponding override section at the bottom of applicationhost.config
<location path="...WebServices">
<system.webServer>
<security>
<authentication>
<anonymousAuthentication enabled="false" />
<windowsAuthentication enabled="true" />
</authentication>
</security>
</system.webServer>
</location>
来源:https://stackoverflow.com/questions/16802839/how-can-i-create-new-applicationhost-config-file-in-iis-express-server