Hi,
I have created a test silverlight app with an asp.net site from the template in vs2008. Then I have added some webservices directly into the web site project. When I run the app from vs the services are working. When I register the site with cassini and try to navigate it with my actual IP address the services are not called at all.

I solved my problem so if anyone is trying to make and host silverlight application first must read carefully this.

In short - silverlight app can make calls to resources such as databases through web services. I successeded to host only 'WebService' (asmx file) with cassini, not 'Silverlight Enabled Wcf Service' (svc file) nor 'Ajax Enabled Wcf Service'.

Here is the process step by step:

1 Create Silverlight project for the app itself (the interface).

2 Create another Silverlight project for the WebServices (it might be differet type of project but this works fine).

3 Add the 'clientaccesspolicy.xml' to the root where the web services are (the content of this file is in the above link).

4 Host the web services project with cassini and give him static port. Test the service, just type http://yourStaticIP:yourStaticPort/yourWebService.asmx

5 Host the Silverlight app those with the interface.

6 Add the newly created service to the app's coresponding web site. Use your path with the static port when searching for the service (http://yourStaticIP:yourStaticPort/yourWebService.asmx).

Hope that helps. Take care!