With version 7.8.1 the updater for windows drive clients will be integrated into the middlware and can be installed via the open-xchange-drive-client-windows package.

In addition it is necessary to install at least one drive client binary package e.g. open-xchange-drive-client-windows-generic.

Further informations can be found here: https://oxpedia.org/wiki/index.php?title=AppSuite:OX_Drive#OX_Drive_for_Win dows