| Subject | English | Spanish |
| comp., MS | application compatibility | compatibilidad de aplicaciones (The concept of ensuring that older applications still run correctly under newer operating systems) |
| comp., MS | application compatibility database | base de datos de compatibilidad de aplicaciones (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) |
| comp., MS | Application Compatibility Toolkit | kit de herramientas de compatibilidad de aplicaciones (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) |