Compartilhar via


[MS-SMB2]: Server Message Block (SMB) Protocol Versions 2 and 3

Specifies the Server Message Block (SMB) Protocol Versions 2 and 3, which support the sharing of file and print resources between machines and extend the concepts from the Server Message Block Protocol.

This page and associated content may be updated frequently. We recommend you subscribe to the RSS feed to receive update notifications.

Published Version

Date

Protocol Revision

Revision Class

Downloads

7/29/2024

79.0

Major

PDF | DOCX | Diff

Click here to download a zip file of all PDF files for Windows Protocols.

Previous Versions

Date

Protocol Revision

Revision Class

Downloads

7/8/2024

78.0

Major

PDF | DOCX | Diff

6/10/2024

77.0

Major

PDF | DOCX | Diff

5/24/2024

76.0

Major

PDF | DOCX | Diff

5/13/2024

75.0

Major

PDF | DOCX | Diff

4/23/2024

74.0

Major

PDF | DOCX | Diff

4/8/2024

73.0

Major

PDF | DOCX | Diff

3/25/2024

72.0

Major

PDF | DOCX | Diff

3/11/2024

71.0

Major

PDF | DOCX | Diff

2/26/2024

70.0

Major

PDF | DOCX | Diff

1/29/2024

69.0

Major

PDF | DOCX | Diff

9/20/2023

68.0

Major

PDF | DOCX | Diff

2/27/2023

67.0

Major

PDF | DOCX | Diff

4/29/2022

66.0

Major

PDF | DOCX | Errata | Diff

10/6/2021

65.0

Major

PDF | DOCX | Errata | Diff

6/25/2021

64.0

Major

PDF | DOCX | Errata | Diff

6/2/2021

63.0

Major

PDF | DOCX | Diff

4/7/2021

62.0

Major

PDF | DOCX | Errata | Diff

8/26/2020

61.0

Major

PDF | DOCX | Errata | Diff

3/4/2020

60.0

Major

PDF | DOCX | Errata | Diff

9/23/2019

59.0

Major

PDF | DOCX | Errata | Diff

4/30/2019

58.0

Major

PDF | DOCX | Errata | Diff

3/13/2019

57.0

Major

PDF | DOCX | Errata | Diff

9/12/2018

56.0

Major

PDF | DOCX | Errata | Diff

3/16/2018

55.0

Major

PDF | DOCX | Errata | Diff

12/1/2017

54.0

Major

PDF | DOCX | Errata | Diff

9/15/2017

53.0

Major

PDF | DOCX | Errata | Diff

6/1/2017

52.0

Major

PDF | DOCX | Errata | Diff

3/16/2017

51.0

Major

PDF | DOCX | Errata | Diff

9/26/2016

50.0

Major

PDF | DOCX | Errata | Diff

7/14/2016

49.0

Major

PDF | DOCX | Diff

10/16/2015

48.0

Major

PDF | DOCX | Errata

6/30/2015

47.0

Major

PDF | DOCX | Errata

5/15/2014

46.0

Major

PDF | DOCX

2/13/2014

45.0

Major

PDF | DOCX

11/14/2013

44.0

Major

PDF | DOCX

8/8/2013

43.0

Major

PDF | DOCX

1/31/2013

42.0

Major

10/25/2012

41.0

Major

7/12/2012

40.0

Major

3/30/2012

39.0

Major

12/16/2011

38.0

Major

9/23/2011

37.0

Major

6/17/2011

36.0

Major

5/6/2011

35.0

Major

3/25/2011

34.0

Major

2/11/2011

33.0

Major

1/7/2011

32.0

Major

11/19/2010

31.0

Major

10/8/2010

30.0

Major

8/27/2010

29.0

Major

7/16/2010

28.0

Major

6/4/2010

27.0

Major

4/23/2010

26.0

Major

3/12/2010

25.0

Major

1/29/2010

24.0

Major

12/18/2009

23.0

Major

11/6/2009

22.0

Major

9/25/2009

21.0

Major

8/14/2009

20.0

Major

7/2/2009

19.0

Major

5/22/2009

18.0

Major

4/10/2009

17.0

Major

2/27/2009

16.0

Major

1/16/2009

15.0

Major

12/5/2008

14.0

Major

10/24/2008

13.0

Major

8/29/2008

12.0

Major

7/25/2008

11.0

Major

6/20/2008

10.0

Major

5/16/2008

9.0

Major

3/14/2008

8.0

Major

1/25/2008

7.0.1

Editorial

11/30/2007

7.0

Major

10/23/2007

6.0

Major

9/28/2007

5.0

Major

8/10/2007

4.0

Major

7/20/2007

3.0

Major

7/3/2007

2.0

Major

6/1/2007

1.3.1

Editorial

5/11/2007

1.3

Minor

4/3/2007

1.2

Minor

3/2/2007

1.1

Minor

1/19/2007

1.0

Major

10/22/2006

0.01

New

Preview Versions

From time to time, Microsoft may publish a preview, or pre-release, version of an Open Specifications technical document for community review and feedback. To submit feedback for a preview version of a technical document, please follow any instructions specified for that document. If no instructions are indicated for the document, please provide feedback by using the Open Specification Forums.

The preview period for a technical document varies. Additionally, not every technical document will be published for preview.

A preview version of this document may be available on the Windows Protocols - Preview Documents page. After the preview period, the most current version of the document is available on this page.

Development Resources

Find resources for creating interoperable solutions for Microsoft software, services, hardware, and non-Microsoft products:

Plugfests and Events, Test Tools, Development Support, and Open Specifications Dev Center.

Intellectual Property Rights Notice for Open Specifications Documentation

  • Technical Documentation. Microsoft publishes Open Specifications documentation (“this documentation”) for protocols, file formats, data portability, computer languages, and standards support. Additionally, overview documents cover inter-protocol relationships and interactions.

  • Copyrights. This documentation is covered by Microsoft copyrights. Regardless of any other terms that are contained in the terms of use for the Microsoft website that hosts this documentation, you can make copies of it in order to develop implementations of the technologies that are described in this documentation and can distribute portions of it in your implementations that use these technologies or in your documentation as necessary to properly document the implementation. You can also distribute in your implementation, with or without modification, any schemas, IDLs, or code samples that are included in the documentation. This permission also applies to any documents that are referenced in the Open Specifications documentation.

  • No Trade Secrets. Microsoft does not claim any trade secret rights in this documentation.

  • Patents. Microsoft has patents that might cover your implementations of the technologies described in the Open Specifications documentation. Neither this notice nor Microsoft's delivery of this documentation grants any licenses under those patents or any other Microsoft patents. However, a given Open Specifications document might be covered by the Microsoft Open Specifications Promise or the Microsoft Community Promise. If you would prefer a written license, or if the technologies described in this documentation are not covered by the Open Specifications Promise or Community Promise, as applicable, patent licenses are available by contacting iplg@microsoft.com.

  • License Programs. To see all of the protocols in scope under a specific license program and the associated patents, visit the Patent Map.

  • Trademarks. The names of companies and products contained in this documentation might be covered by trademarks or similar intellectual property rights. This notice does not grant any licenses under those rights. For a list of Microsoft trademarks, visit www.microsoft.com/trademarks.

  • Fictitious Names. The example companies, organizations, products, domain names, email addresses, logos, people, places, and events that are depicted in this documentation are fictitious. No association with any real company, organization, product, domain name, email address, logo, person, place, or event is intended or should be inferred.

Reservation of Rights. All other rights are reserved, and this notice does not grant any rights other than as specifically described above, whether by implication, estoppel, or otherwise.

Tools. The Open Specifications documentation does not require the use of Microsoft programming tools or programming environments in order for you to develop an implementation. If you have access to Microsoft programming tools and environments, you are free to take advantage of them. Certain Open Specifications documents are intended for use in conjunction with publicly available standards specifications and network programming art and, as such, assume that the reader either is familiar with the aforementioned material or has immediate access to it.

Support. For questions and support, please contact dochelp@microsoft.com.