Custom DataProvider for .NET apps(repost)

I need custom DataProvider for .NET application and installer (script). It must work with C# and ASP.NET projects in Visual Studio 2005 and 2008 ## Deliverables That custom DataProvider must work in the same way (inherit) all properties on SqlClient Data Provider. It must connect to SQL 2005 and 2008 Only + one important feature : It must accept extra parameter in connection string: message example: Data Source=SERV1;Initial Catalog=masterIntegrated Security=True;message=hello there; And after each connect it must try to insert this message into table Messages. Supposing that this table must exist and without any error checking. This provider must be visible and selectable from Configure Data Source window in Visual Studio 2005 and 2008 . Nothing special but list SQLClient See attached screenshot. I also expect some kind of installer (does not matter which one) Project must be written in C# and compilable in VS 2005 FULL SOURCE OF SUCH PROVIDERS WHICH COULD BE USED AS EXAMPLE AVAILABLE FOR SQLITE, FIREBIRD etc.