| Subject | English | Czech |
| comp., MS | File Open Picker contract | kontrakt Výběr a otvírání souborů (A contract that enables developers to create apps that use the file picker to offer files to other apps) |
| comp., MS | Open Received Files | Otevřít přijaté soubory (An item on the File menu that opens files that the user has received via Communicator conversations) |
| comp., MS | Open Software Descriptor file An XML-based file that instructs the client on how to retrieve the sequenced application from the Application Virtualization Management/Streaming Server and how to run the sequenced application in its virtual environment | soubor OSD (Open Software Descriptor) |