I actually dont use the mytray.exe at all sicne all of my channel changin is goign thru the DVBlink.
If you are passign a analogue signal from sky to your TV card and wat to use the dusky controler for channel chagign, then you will need to use mytray.exe
A little fiddly to setup, but heres how I eventualyl got it going with the help from Joseph @ duskycontrol:
Is seems I have made soem progress with mytray
see screenshot
brains here didnt think of having wmc open at the same time, DOH!
so its getting closer.
so when wmc is open, and i try and flick thru channels, the channel display is changing in mytray.exe - so it seems the comms are ok between mytray & wmc