Skip to main content

Open Specifications

Take advantage of your access to information about protocols, file formats, standards and other technical specifications for Microsoft high-volume products.

Specifications for Microsoft proprietary protocols implemented by certain Microsoft products and used to communicate with other Microsoft products

Specifications for certain Microsoft computer languages implemented by Microsoft products

Specifications for certain standards supported in releases of Microsoft Exchange Server, Microsoft Outlook, Word, Excel, PowerPoint, Windows WordPad, SQL Server, and Internet Explorer

Specifications for explaining how user-created data in Microsoft Office and Microsoft SQL Server can be extracted for use in other software products

Patent Licensing

Some of the Microsoft Open Specifications include patented inventions, and others do not. You may benefit from a patent license if you are distributing implementations of these specifications commercially or if you use an implementation of any of the specifications covered by Microsoft patents. For more information, go to or contact the Microsoft Open Specifications Team.

Microsoft réalise une enquête en ligne pour comprendre votre opinion sur le site Web de. Si vous choisissez de participer, l’enquête en ligne vous sera présentée lorsque vous quitterez le site Web de.

Souhaitez-vous y participer ?