Need help how do I sink atl com interfaces into a c# application and how do i call the basic interfaces on the com object? Anyone have any source code available

I have a atl com dll I wrote in vc6 and am using it in a C# application. Does anyone have any source code that they can show me how to use the com interfaces and how to sink the interfaces that are used as callbacks? I am having trouble finding example on information on how to do this. You can email me [email protected]