brake maintenance

On previous vehicles, about every 2 years, I'd drain about 50 ml or so from each brake slave, to keep them clean.
This ('97 Astro) is my 1st vehicle with ABS brakes.
Is this a straight forward open-the-bleeders, or are there some tricks involving the ABS system?
Thanks in advance

The ABS brakes bleed the same way as the non-ABS. I need to do this to my astro. In fact I need to flush the brake lines completely. I wish could figure out a way to attach a big reservoir of brake fluid so it wasn't so tedious.