Workgroup Server Protocols Program
The Workgroup Server Protocol Program (WSPP) provides a set of detailed technical documents for protocols (including extensions to industry-standard or other published protocols) that are used by Microsoft Windows Server operating systems (including Windows NT Server 4.0, Windows 2000 Server Standard Edition, Windows Server 2003 Standard Edition, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2) to provide file and print and user and group administration services to Windows workgroup networks (including Windows 98, Windows 2000, Windows ME, Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 8.1).
Microsoft designed WSPP pursuant to the European Commission Decision issued on March 24, 2004 (Case COMP/C-3/37.792-Microsoft).
To review the WSPP overview and reference documents and the technical specifications, click these links:
WSPP Technical Specifications .zip file (all documents — 202+ MB)
If you have questions about the WSPP technical specifications, please visit the Open Specifications Forums on MSDN. These MSDN user forums are available to answer technical questions about those documents.
For information about interoperability plugfests and events and test tools, please visit the Microsoft Open Specifications — Applied Interoperability website.
The WSPP technical specifications are published and available on MSDN at no charge. Rights under Microsoft patents and warranties that cover these specifications are available separately. For more information about WSPP, including patent license and patent covenant agreements and warranty agreements, visit the Microsoft Open Specifications website or send an email message to the IP Licensing Team.