Preview Documents

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The Windows Protocols documentation contains detailed technical specifications for Microsoft protocols that are implemented and used by Windows to interoperate or communicate with other Microsoft products. It also contains technical specifications for extensions to industry-standards and other published protocols that are used by Windows. In addition, the documentation includes a set of companion technology overview and reference documents that supplement the technical specifications with conceptual background, overviews of inter-protocol relationships and interactions, and technical reference information.

Documentation for released versions of Windows was last updated August 26, 2020 and is at Windows Protocols.

The following preview versions of Windows Protocols documents are available at this time.

Updated Preview Documentation

The documents below were updated in September 2021.



Release Date

[MS-RPRN]: Print System Remote Protocol

Specifies the Print System Remote Protocol, which defines the communication of print job processing and print system management between a print client and a print server.

This document has been updated as follows:

●  Updated to support server and client use of _DRIVER_INFO, _FORM_INFO, _JOB_INFO, _MONITOR_INFO, _PORT_INFO and _PRINTER_INFO.

September 2021