Card Module is also called Smart Card Mini Driver
Card Module which has been talked about is also called Smart Card Mini Driver. The specification for the same is now available for download at https://www.microsoft.com/whdc/device/input/smartcard/sc-minidriver.mspx
If you have comments about the specification, please let us know. If you have requirements or suggestions for API, then you will need to send us a detailed use case (scenario) and possibly some data on how important is this for your deployment.