I wrote my own backup .com file, using the XCOPY command, with its /d switch
to back up only changed files.
It's not pretty, but it works exactly as I want.
Be careful to use the /exclude switch too, if you're backing up your
Documents folder, or you'll end up in a loop, as there are hidden recursive
links there.
Do a HELP XCOPY for the complete details.
Here's an example (U is my backup USB drive):
***
XCOPY C:\Users\Dave U:\Dave /d/s/c/i/h/r/k/o/y
/exclude:C:\Users\Dave\Documents\BackupExclude.txt
***
and here's the conents of my BackupExclude.txt file:
***
C:\Users\Dave\ntuser
C:\Users\Dave\AppData\
C:\Users\Dave\Application Data
C:\Users\Dave\Cookies
C:\Users\Dave\Local Settings
C:\Users\Dave\My Documents
C:\Users\Dave\NetHood
C:\Users\Dave\PrintHood
C:\Users\Dave\Recent
C:\Users\Dave\SendTo
C:\Users\Dave\Start Menu
C:\Users\Dave\Templates
C:\Users\Dave\Documents\My Music
C:\Users\Dave\Documents\My Pictures
C:\Users\Dave\Documents\My Videos
***