This post shows you how to host a Silverlight application in the Google App Engine (GAE) platform. You deploy and host your Silverlight application on Google’s infrastructure by creating a configuration file and uploading it along with your application files.
I tested this by uploading an old demo of mine - the four stroke engine silverlight demo. It is currently being served by the GAE over here: http://fourstrokeengine.appspot.com/
The steps to run your Silverlight application in GAE are as follows:
Account Creation
Create an account at http://appengine.google.com/. You are allocated a free quota at signup.
Select “Create an Application”
Read more: Raj Kaimal