BuildCommand usage

[Bondan]

Hello...

I have a c3po dll made in C# and I'm trying to launch the reply window
for a specific message with the following code:

string strCommandId = _originalCState.BuildPersistentID(54, null);
cmd=(IGWCommand)_originalCState.BuildCommand("GW.M ESSAGE.MAIL",strCommandId,null,null);
cmd.Execute();

This code launches the reply window, but it replies to the currently
selected message. How Can I make so that it replies to a specific message?