when HFS is ON, try doing start menu -> run ...
telnet localhost <PORT>
well, instead of <PORT> you should write the port on which HFS is listening (read it in the top bar)
this let you know if HFS is truly listening, as a server should...
if a black window comes up, then it is listening
if nothing happens, or an error messages comes up, then it is not listening
please, report here the result of this test