I now fully and completely remember why I hate Windows. I have struggled with the backup semantics options in order to get rsync able to back up open files, and I got something that appeared like it should work, but it didn't work. So I finally broke down and wrote a holdopen.exe and a tryopen.exe to test my theory, and no matter what privleges were enabled (backup and restore were enabled), a program under Windows can _NOT_ open a file which has been opened if the original opener has not specified read sharing. No matter what.
A much more careful reading of the docs indicates that backup semantics only allow you to bypass _security_ restrictions, not sharing restrictions (as well as allowing access to security information about the file). I can't believe it. This means that most backups under Windows are completely useless unless programs avoid opening a file without SHARE_READ. One backup program claims to be able to back up unshared, open files. They say that they do it with a custom kernel driver which allows them direct access to the file. This, of course, is beyond the scope of my charter for modifying rsync. -- Jason M. Felice Cronosys, LLC <http://www.cronosys.com/> 216.221.4600 x302 -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
