A search of D-Link's site says that model is discontinued, but here's the support page:
https://www.dlink.com/products/?pid=DWL-810%2b&tab=3
I don't think there is an actual driver, but there is a quick start guide.
-Jeff


Jeff Moss

Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE