This time I try to access my webservice (MyService.svc).
HTTP Error 404.3 - Not Found
The page you are requesting cannot be served because of the extension of the configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.
The IIS handlers window shows no handler for *.svc.Solution:
Open a command window as administrator
Go to C:\windows\Microsoft.Net\Framework\v3.0\Windows Communication Foundation
Type ServiceModelReg –i
No need to restart, it just works.
UPDATE .Net 4
Open a command window as administrator
Go to %windir%\Microsoft.NET\Framework\v4.0.30319
Type ServiceModelReg –i -c:httpnamespace