The Intel PCI - PCMCIA Windows driver typically refers to the driver for Intel's PCI-to-PCMCIA bridge or controller, which allows a PC to communicate with PCMCIA (Personal Computer Memory Card International Association) cards. These cards were commonly used for expanding the functionality of older laptops and devices with features like networking, storage, and other peripheral connections.

The PCI-to-PCMCIA bridge enables the PCMCIA cards to interface with the system through the PCI (Peripheral Component Interconnect) bus. This setup was more common in older laptops, as PCMCIA slots have mostly been replaced by newer technologies like USB and ExpressCard in modern devices.