Notifies the driver that it is being removed from memory. The driver should free any memory and other system resources that it has allocated.
Handle of the installable driver instance.
No return value.
The dwDriverId, lParam1, and lParam2 parameters are not used.
The DRV_FREE message is always the last message that a device driver receives.
|Minimum supported client
||Windows 2000 Professional [desktop apps only]
|Minimum supported server
||Windows 2000 Server [desktop apps only]