straight from the zip, with no xml config file
start the server (localhost should add to the clients and not drop!)
you set the client to auto add cmd
run a couple of cmd.exe
you'll see them in the client window...
check broadcast keys

focus one of the cmd and it should copy all keys,

if not, can isolate it a bit by testing,
a) if toggle keys work,
b) if PiP works then the keys are reaching the section of the code which broadcasts...