I have two .NET projects in the same domain. The first project I create long time ago in VB.NET. Now I create another project that I built in C#. How can I set up my new project in the same domain so I can access the new forms that I built in C#. Do I need to submit the whole folder from the project? Do I need to change anything in the web.config? Right now I am getting this error. [PhoneControl] is the new project in C#. http://www.martinesexpress-inc.com/PhoneControl/Default.aspx