DWORD _VPOWERD_Get_APM_BIOS_Version(VOID);
Retrieves the version of the current connection to the APM BIOS. If the service returns a valid version (that is 1.0 or 1.1), an APM BIOS exists in the system.
| 0x0000 | No APM connection exists. |
| 0x0100 | An APM 1.0 connection has been made. |
| 0x0101 | An APM 1.1 connection has been made. |