There are no "windows driver" for the usbd12 chip from philipd.
The chip is only a USB device chip. You need to implement all the pnp and device specific functionality yourself in a CPU or simular connected to the chip.
This gives that its not posible to create a driver for the chip, then the driver is dependent on what kind of device out are using the chip in.
PDIUSBD12 is only a USB-PHY, the Serial Interface Engine and line driver/duplexer and RX/TX buffers, with the clock recovery and etc, it is not a USB-DEVICE. so maybe some example projects can be found using PDIUSBD12.
search the net, there are many projects using usb device out there that can work to get a grip of it.
For pdiusb11 I know that https://www.beyondlogic.org/ has a full sample with the device side implemented in pic and deriver for PC. The electrical interface is diferent from the pdiusb12 serial instead of paralell but the stuff needed to be done is the same...