POWERRET _VPOWERD_OEM_APM_Function(LPOEM_APM_REGS lpOEM_APM_Regs);
Carries out an OEM-specific APM 1.1 function by passing the function number and parameters directly to the BIOS. This function is available only for APM 1.1 connections.
To get an OEM ID, refer to the APM 1.1 specification.