Using a thread to fire windows events

Hi all,

|-------------| changeSpeed |----------|simulate |-------------|
|simulation |------------->|Controller|--------->|Simulation |
|controlPanel | |Loop |second |Panel |
|-------------| |----------| |-------------|

I'm building a simulation GUI with 2 parts : one panel for controlling
the simulation and another for "showing" the simulation. Basically,
the controlPanel would throw events(simulation speed up/down for
instance) which are then caught by a controller which adjusts the
simulation parameters and acts accordingly(sends secondPassed events
more frequently to the simulationPanel)

problem is I cant implement this only in the main thread, if the
control loop gets in the thread, it freezes the control part of the
app. I figure I'd need a WorkerThread.

Last time I tried a workerThread, I had problem with it. I could
change data on the GUI but it would get undone quickly.

Anyone has any idea of what I can do? Good references to thread
programming in .net? any insight?

Thanks

Pierre Darisse