在.net中的SOAP信封中包装XML

I need help with wrapping an XML in a SOAP envelope for a third party SOAP server. The third party has provided xsd files for the inbound request and outbound response. I've taken those XSD files and created C# classes of them using the xsd tool. My problem is that I need to wrap the serialized request with a SOAP envelope and I don't know where to start. I was looking at the Microsoft Web Service Enhancements 3, but that says that it's only for .net 2.0 and VS2005. I am using VS2012 and .net 4.5. Also, I've looked into connecting to the server by way of web service but it doesn't seem compatible and I need help with wrapping an XML in a SOAP enve