Testing on local Web Development Server and running the application in shared hosting environment differs a lot.
What are the best steps to deploy a Silverlight RIA Services Application on a shared hosting environment?
Testing on local Web Development Server and running the application in shared hosting environment differs a lot.
What are the best steps to deploy a Silverlight RIA Services Application on a shared hosting environment?
One issue you might need to look into is the web server serving .xap files. Your Silverlight application is compiled to become a .xap extension file and will your shared hosting web server allow that extension to be served by the server? I would check that out.
RIA services assumes you are of course running ASP.Net hosting. You really want to be running an IIS7 server if you can (to allow dynamic URL mapping out-of-the-box as well).
If you have IIS 7 hosting it is almost 100% likely the server is already configured correctly to run Silverlight with RIA services. IIS 6 might need some updates installed first.
Unless you have your service as a separate site to your Silverlight deployment site RIA services will generally "just work" on your shared hosting. Just deploy a sample RIA site and see what happens. If you have specific issues post the details and go from there.
Hope this helps.