stream file object

stream file object 在ddk上是这么定义的，
A virtual file representing on-disk data associated with a file, some of which might not be part of the physical file that backs a file object. For example, a stream file object makes it possible to cache the EAs or ACL for a file object together with the file's data. FS-created stream file objects also make it possible to cache a copy of the on-media metadata describing the contents of each FS-mounted volume.

在一些版本的os下，用缩略图形式浏览一些格式文件（比如.jpg格式的）会产生一些流文件，过滤驱动会抓住这些文件，可实际上它们并不存在，如果直接pass，可能会影响原先的缩略显示效果，可如果截获下来了，又该如何处理，如何继续传递呢？

希望老大们给个思路 :D