Some Autodesk products, such as Inventor and Revit, can use separate language packs to add one or more additional language versions to an installed product. Each language pack provides user-interface strings, message text, and documentation in a specific language, without duplicating the product software. To distribute a specific language version to multiple instances of an Autodesk product, you can use the installer included with each language pack to create a language pack deployment. If you need to deploy language packs for multiple languages or multiple products, you can create a batch file to install a series of language packs on each computer.