NTSTATUS __stdcall IopSetDriverFlagsExtension(INT64 a1, INT64 a2){
_IOP_IRP_EXTENSION *IrpExtension;
IrpExtension = IopAllocateIrpExtension((_IRP *)a1, (_IRP_EXTENSION_TYPE)8);
if( !IrpExtension )
return -1073741670;
IrpExtension->DriverFlags.Value = a2;
return 0;
}