The Card Services component is a protected mode VxD module that is linked with the PCMCIA bus enumerator. It provides a protected mode PCMCIA Card Services 2.x interface for protected mode Card Services clients. Card Services passes the event notification from Socket Services to the PCMCIA bus enumerator, provides information from the PC cards to the PCMCIA bus enumerator, and sets up the configuration for PC cards in the adapter sockets.