computer based midi control

[SketchyJoe@aol.com]

I was wondering if anybody knows of a window based program that can 
transmit on the fly midi control changes?  I know obviously that I can 
preprogram a sequencer to send changes.  I was hoping for something 
alsmost like a computer based "Faderman" or something.  It would need to 
be cheap though, otherwise I would just get the Cooper box or something 
similar.  Thanks.

Joe