Please take the following steps to update WebOffice author. Consider the notes in the respective README file before starting the upgrade.
Backup the content of the WebOffice usermanagement database
When using WebOffice usermanagement, backup the WebOffice usermanagement database by exporting an xml dump file.
Uninstall WebOffice author
Uninstall WebOffice author via Control Panel\Programs\Programs and Features. Be sure that ArcMap/ArcCatalog are closed.
Note: If problems occur during uninstall, please, consider also the notes in chapter Install/Uninstall Problems during Setup Process.
Install WebOffice author
Note: Verify that the .NET system requirements to install the WebOffice author are fulfilled.
Follow the directions in chapter Install WebOffice author in order to install a newer version of WebOffice author.