首发一个曾打算商用的文档透明加密驱动代码，类minifilter.记得是可以正常对word加解密的，而且关键是完全脱离了MS复杂的（个人认为）minifilter源码。

用来商用是绝对不行的，自己用估计也要改改，但起码逻辑是挺清晰的，如果用来入门我觉得挺好的，当然自己完整改过minifilter的就不需要看了。

至于刷缓存和实现多缓存，这个就见仁见智了。我觉得两者如果都实现到可以商用这个级别的话，就是可以的。作为一名不资深人士，在阅读并操作过DMK和国内某专业厂家的纯刷缓存的产品之后，个人觉得不需要纠结了，只需要关注好产品本身就行了，至于如何实现，大可不必较真。毕竟，minifilter是MS官方的标准；layerfsd，也是经过OSR的长久验证的，两者都是可取的。-The first one had intended to the commercial document transparent encryption driver code class the minifilter. Remember normal word plus decryption key is completely divorced from the complex MS (personally think) minifilter source. Is definitely not used to commercial, with estimated have to be changed to change, but at least the logic is very clear, I feel very good if used entry, of course, a complete turn over minifilter do not need to read. As for the brush cache and multi-cache, this is a matter of opinion. I think both implement this level of commercial, is that you can. As a veteran in the read operation DMK and a professional manufacturer of pure brush cache products, personal think it is unnecessary tangle only need to focus on the good product on line, how to achieve, no need contests . After all, minifilter the the official standard MS　layerfsd, and it took the long-term verification of OSR, both of which are desirable.