I tried this method myself and it worked really good for me, I could for an hour and probably could play even longer but I had to go eat. Now I didn't use it for hacking or anything, just using a proxy with proxifier. Also, the forced program thing is only for registered users which I'm not (I'll buy it eventually).
Basically, I just opening proxifier sandboxed (right click Proxifier -> Run Sandboxed). Although I had to put in my key code again. Also, I had replaced my HS with an older version and reshacked my proxifier but I'm unsure if this has any factor on it at all.
Well, I don't get the hack detected messages.