!!!File damaged!!!

Hi,all

We are developing a file system mini-filter driver for encryption on Windows
XP SP2, and if we just use our mini-filter driver for encryption/decryption,
that¡¯s OK. But if we set both our encryption flag and Windows EFS
encryption or compression flag for this file, then reboot the PC and we will
find that the encryption file will become damaged. And at this time, if we
unload our mini-filter driver and reboot the PC, then we can find that the
encryption file has become plain.

We had developed a legacy filter encryption driver; also we suffered from
this pain. Please help me. Thanks

Thanks
Ben