⚠️ required HALion Sonic SE/Groove Agent SE In this way all vstsound files can be installed by a single double-click. When downloading several content titles, it is good practice to move all vstsound files to the same folder first.The Steinberg Library Manager will be started automatically and offers the installation of all vstsound files in the same folder.Double-click on one of the downloaded vstsound files.ISO disk images can be easily mounted as virtual volumes by double-click. Content containing multiple vstsound files is being provided as an ISO disk image. Cubase content generally consists of vstsound files.If they are missing or not up-to-date, the installation without the Steinberg Download Assistant will fail. ⚠️ Requirements for installations without Steinberg Download Assistantīefore installing any of the Cubase 12 components below, the following utilities must be installed resp.