X-Author for Contracts 1.0 (Classic) X-Author for Contracts for Users Setting Up X-Author Contracts Current: Before You Install PDF Download PDF Download page Before You Install. Current page Include child pages All pages Before You Install Before installation, please check that you have the following:ApttusInstaller_<<version>>.exe for X-Author Contracts (download from the Install Center).You must be logged into the target machine with Administrator permissions.You must not have any instances of Microsoft Office products running.You must be connected to the Internet.You must uninstall X-Author Contracts to upgrade from Winter 2019 (10.0.1125.1903). ×