Your thread is very much the same as this thread http://www.dual-boxing.com/threads/5...topped-working, in which it was concluded that something in a recent update (WoW I believe, and not Windows), does not play nice with HotKeyNet. I haven't read to the end of this thread to see if it was ever resolved, but my understanding is that HKN is not actively developed these days so any kind of fix on that front does not appear to be forthcoming.