Thanks for the links, I've read over them and figured a few things out.
What i'm stuck on now is the math to try and figure out how I can make a timer that ticks every 1 or 10 microseconds. To encode the IR data I need to step in 600 microsecond intervals. I figure if I write an interrupt timer, that does nothing but increase a tick count (c = c + 1) I can check in my main loop of I should stop/start the IR data: If (Count = 60) Then Low IRPin
should work if Count is incremented every 10 microseconds :/

I found an Elapsed time Demo but I need something that is at least 10x more accurate then that [ideally 50x-100x more accurate]