ANYONE get CopyData working in .net?

[MultiThread]

I can not get the WM_COPYDATA commands to work in vb.net for the life of me. Has anyone had ANY luck doing so (even in C#?) I will share my attempts and results if there's interest. It would be *very* helpful to get this to work.

<pseudocode below>

Public Structure COPYDATASTRUCT
Public dwData As Long
Public cbData As Long
Public lpData As Long
End Structure

Dim oCDS As COPYDATASTRUCT
SendMessage(m_hwnd, WM_COPYDATA, 0, oCDS)