Daylight Saving nightmare

[Tech99]

Hmm... it seems that you didn't figure what i meant - and how archive bit/flag works?

You don't have to manually manipulate archive bits. Robocopy clears archive bit after copy is made - then when/if you modify file by saving it, the archive bit is set again - and then incremental backup using robocopy copies file again.

So, there absolutely is no need, to manipulate archive bits (unset or set manually).

...aand what comes to incremental backup using robocopy, then the '/MIR' switch is enough, it copies modified files only - making exact mirror copy from source folder structure. So even when there are files without archive bit set, robocopy copies those files also;
- if destination file differ from source file
- if file is missing from destination