According to the specifications, the 530 does not have such legacy ports, offering 6 USB ports, a VGA port, an ethernet port, and audio ports. Since Windows only shows entries for devices/ports you actually have, Windows is likely performing as it should. Did you add an adapter or PCI card to give your 530 these legacy ports?
Dell Inspiron 530 dual core 4 GB. I blew away the Vista 64 installation because of high DPC issues.
Win 7 ultimate, only now there are no COM or printer ports. I do not even see an expandable category for ports at all!
Any ideas appreciated