Hide something from task bar (messnger to be exact)

[allllec]

Well title says it all, i want to have WLM open on my desktop but i want it hidden from the task bar (but keeping icon in system tray)

anyone know a free way to do this ? i really would rather not use 3rd party bit of software but i may be talked into it !

 

[allllec]

1024*768. tiny task bar - dont want it full of crud