if (fileName != NULL) {
RtlInitUnicodeString(&filter_string,PROTECTED);
CreateOptions = ((irpSp->Parameters.Create.Options>>24)&0x000000ff);

if (CreateOptions == FILE_OPEN)//注意标志，如果你创建成功 ，自己手动写得话，也得修正创建标志位。
{
KdPrint(("SFilter!SfCreate: hollyshit !----%wZ\n",&fileName->Name));
if (!RtlCompareUnicodeString(&filter_string,&fileName->Name,TRUE))
{
IoCancelFileOpen(devExt->NLExtHeader.AttachedToDeviceObject,
irpSp->FileObject);//取消 下层 文件对象创建


KdPrint(("SFilter!SfCreate: hollyshit !\n"));
NLFreeNameControl( fileName, &gSfNameBufferLookasideList );
Irp->IoStatus.Status = STATUS_ACCESS_DENIED;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_ACCESS_DENIED;
}