Yep, different applications are guaranteed to react differently to this, depending on how they were written. And a lot of games use the _rdtsc intrinsic straight from the CPU... I can't pause that. :)
Agreed, it's not the most elegant code, but it's so short and simple I haven't bothered reorganizing the code yet. I probably will start adding features like re-bindable pause key, etc., and I will untangle the mess a bit at that time.
I have thought about this. In fact I even asked Gabe Newell about whether the use of this program might falsely trigger some anti-cheat mechanism within Steam. (He hasn't replied yet.) So, I guess until I get more official information, please proceed with caution and use at your own risk. That being said, that would imply that using Process Explorer or PsSuspend could also get you banned, since those applications also have the ability to suspend threads.
I didn't know of the critique of K&R in LCTHW that got taken down. I'm surprised that the rabble-rousers weren't able to take it in context. When K&R was first authored, there were no "seasoned" C programmers from which to draw on for their experience in writing safe, secure C code!
But... I read the title of your post, and the lack of date/time makes me discard it IMMEDIATELY. I HATE articles with no date stamp. No, seriously, I didn't read what you wrote. I have no idea what you said.