already tried using this rdtsc stuff instead ? ok, you'll get the absolute time and not the time of your process, but maybe one could do some filtering ...
why do you need a better timebase than the one of HL ? are the bots running better if calculating your own time ? I always thought that if the bot and the engine are based on the same time, that shouldnt make problem ... but looks like I'm wrong here

hl is getting stranger and stranger ... but hey, that was always the case, right ?