To add a bit more,I dont use any other network programs etc either.
Microsoft would be under tremendous pressure from the powers that would ( or want to) be,to stop programs like Gnucleus from working.No conspiracy just a fact.If you count just the numbers of people that cant install windows or configure firewalls etc,a simple update block would stop millions from being able to file share. For awhile anyway,then throw another one into the mix!