Creative Labs Ct4810 Windows 7 64 Bit Driver -
They didn't forget. They chose not to. By 2009, the CT4810 was a $5 value card. Spending engineering resources to write a WDM (Windows Driver Model) driver for a chipset that cost less than a pizza was bad business.
There is a community-signed driver floating around the VOGONS forums and Phil's Computer Lab. It is a modified version of the last Vista x64 beta driver for the ES1370/1371 chips. Creative Labs Ct4810 Windows 7 64 Bit Driver
Let me be clear: