ASP.net 4.0 Silverlight Hosting Tweaks

Having strange 404 Not Found problems with your Silverlight deployment when it all works fine in your development environment?

This is what my hosting provider had to change to support WCF Silverlight deployments. Hope it helps you too.

• Changed Application Pool to .NET Framework 4.0 Integrated
• IIS Authentication – Windows Authentication needs to be disabled ( from within IIS Management Console )
• Added a Managed Handler to Handler Mappings :
  • *.svc
  • System.ServiceModel.Activation.ServiceHttpHandlerFactory, System.ServiceModel.Activation, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
    Svc-Integrated-4.0