| English | German |
| application compatibility | Anwendungskompatibilität (The concept of ensuring that older applications still run correctly under newer operating systems) |
| application compatibility database | Anwendungskompatibilitäts-Datenbank (A database that contains a list of applications that may have potential compatibility problems and remedies. When an application starts, Windows checks this database to configure system options to minimize compatibility problems) |
| Application Compatibility Toolkit | Anwendungskompatibilitäts-Toolkit (A suite of tools that enables software developers, independent software vendors (ISVs), and enterprise IT professionals to determine whether their applications are compatible with a new version of Windows before rolling it out to the company. ACT also enables such individuals to determine how Windows security updates may impact their applications) |