I can well believe you have had problems in your projects if you think that there are "known issues of TCP/IP message passing from Unix/BSD stack to a Win stack".
Oh, but there are issues. One side does "write(sockfd, &myobject, sizeof(myobject))" and the other does the equivalent (which .NET makes far more difficult that it needs to be, so I haven't room to write it here), and because the platforms are incompatible your program usually just crashes.
Much better to use SOAP (or even just XML over HTTP if you have truly extreme performance requirements) and completely avoid all that TCP/IP mess.
Note to the humor impaired: you have no sense of humor.