see example on http://drupal.org/node/31506 we would like to update the auto maintenance documentation for windows users
Attachment: trigger archiving from API without memory leaks LaunchArchiving.zip
note that this might actually require to have the logic currently in archive.sh pushed out to a php script that the windows scheduled task could run. Maciej built such a plugin in attached file.
dupes #295 but this ticket has an attachment
Windows users can find the info easily on the internet