NT6上的获取进程全路径

PUNICODE_STRING PsGetProcessFullName(PEPROCESS pTargetProcess)  
{  
        PFILE_OBJECT pFileObject=NULL;  
        POBJECT_NAME_INFORMATION pObjectNameInfo=NULL;  
        if(!NT_SUCCESS(PsReferenceProcessFilePointer(pTargetProcess,&pFileObject)))  
                return NULL;  
        if(!NT_SUCCESS(IoQueryFileDosDeviceName(pFileObject,&pObjectNameInfo)))  
                return NULL;  
        return &(pObjectNameInfo->Name);//尚未释放内存 以及 ObDereferenceObject  
}