The PCI CX11256 Soft Modem Windows Driver is a software package that allows your PCI CX11256 soft modem to function correctly on a computer running Windows. The CX11256 is a soft modem (software modem), which relies on the computer's processor to handle many of the tasks that were traditionally managed by dedicated hardware in older modems. This modem is typically used for dial-up internet connections and fax communication, particularly in situations where broadband is not available.

The Windows driver for the PCI CX11256 Soft Modem enables the operating system to recognize and interact with the modem, allowing you to use it for connecting to the internet via telephone lines.