DB25 wire colors

These are the colors of the wires of the male-to-male parallel port cable that I bought at eBay. Those which I'm interested in are Di (0 <= i <= 7), i.e. all the way from non-striped red to non-striped light blue. Supposedly, these can be set to +0V or +5V relative to ground (e.g. striped white) by the operating system.