greetz to you all gurus here :)

I'm trying to find a way to start controlling my serial port from within
visual basic in excel.
Anybody know how to get a good start in doing so ?

Object is to control/communicate a (self built) controller attached to the
com port, set and get values back from it using visual basic in excel.
Communication already works using hyperterminal, so my only prob is to grab
and manipulate the serial port of the pc.