IPC between .NET and Java client applications

Question

I must get two different client application talk without any kind of broker or server. What is the best method for IPC beween two process, Java and .NET?

It must able to

Answer 1

I would use protobuf.

Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. Google uses Protocol Buffers for almost all of its internal RPC protocols and file formats.