[amsat-bb] How to control HDSDR with SatPC32?

Hi all: I apologize in advance because I know this question was answered on this bb before, but I simply cannot find it. Can't find it in the docs, either. The question: I want to use SatPC32 to automatically switch satellite frequencies on an RSP1 SDR. I know there is an interface program (vspMgr) that makes SatPC talk to HDSDR (and HDSDR commands the RSP1; that part works well) but I can't find the details on how to make it work. Help, please. Thanks! Ed K9EK EM69xd