Microsoft Open Specifications Support Team Blog

The official blog of the Engineers supporting the Microsoft Open Specifications Documentation

Signing is an integral security feature in SMB2 since its inception. Encryption starts in SMB3 as an...

Date: 05/26/2017

The Kerberos user-to-user (U2U) authentication mechanism enables a client to authenticate to a...

Date: 05/24/2017

Verifying STUN Message Integrity for Lync and Skype for Business ICE Traffic Recently there have...

Date: 02/23/2016

IntroductionThis is the second in a series of articles covering various OpenXML topics. This article...

Date: 11/06/2015

IntroductionThis will be the first in a series of articles on various OpenXML topics. This article...

Date: 09/16/2015

Note: This article was written using version 16.2 (10/30/2014) of the MS-OXCFXICS document as...

Date: 09/16/2015

SMB 3 encryption offers data packet confidentiality and prevents an attacker from both tampering...

Date: 09/09/2015

Pre-authentication integrity is one of the new SMB 3.1.1 security improvements in Windows 10 and...

Date: 08/11/2015

Summary This Blog will use the sample Heap-on-Node (HN) from section 3.8 of MS-PST and walk through...

Date: 05/30/2014

This blog talks about site-aware DFS referral introduced in Windows Server 2012. Extended DFS...

Date: 02/21/2014

As interoperability relies mainly on the network interactionbetween systems and services, it is of...

Date: 10/10/2013

Hi all! I have recently received a couple inquiries regarding theway in which GUIDs are represented,...

Date: 10/08/2013

MS-RDPEUDP is a new protocol in RDP8 and operates in 2 modes : Reliable (RDP-UDP-R) and Best Efforts...

Date: 09/11/2013

Abstract This post of my blog responds to a request by a customer to find and extract a VBA macro in...

Date: 06/20/2013

Hello world! I’ve decided to write this entry to talk about twointertwined subjects: - The...

Date: 05/30/2013

Referenced documents:[MS-CFB]: Compound File Binary File Format[MS-OLEPS]: Object Linking and...

Date: 04/08/2013

This blog talks about common timeouts for SMB dialects 2.x and 3.0 [MS-SMB2] in Windows. It also...

Date: 03/27/2013

Extended Protection for Authnetication (EPA) was introduced in Windows 7/WS2008R2 to thwart...

Date: 03/26/2013

This blog gives a consolidated overview of the most common SMB timeouts in Windows and their...

Date: 03/19/2013

Seldom is the question asked, "Is there an RTF directive that can be used to add watermarks in RTF...

Date: 02/04/2013

OverviewActiveSync requests and responses are sent as HTTP messages. In order to reduce the size of...

Date: 02/04/2013

Referenced Documents: MS-CFB MS-OLEPS If you need to programmatically determine the office file type...

Date: 01/16/2013

This blog entry is intended for readers interested in generating unencrypted MS-EVEN6...

Date: 01/13/2013

Encryption is one of the new SMB 3.0 security enhancements in Windows Server 2012 RTM. It can be...

Date: 10/05/2012

Hitchhiker’s Guide to Debugging RDP protocols: Part 2 NOTE: Questions and comments are...

Date: 07/24/2012

This blog talks about secure dialect negotiation, one of the new SMB3 security enhancements in...

Date: 06/28/2012

It is not unusual for our group to receive a question regarding Constrained Delegation and Protocol...

Date: 06/25/2012

SMB3 will debut in the upcoming version of Windows 8. This is a significant update from the last...

Date: 06/08/2012

Hitchhiker’s Guide to Debugging RDP protocols: Part 1 [MS-RDPEUSB] NOTE: Questions and...

Date: 05/24/2012

The current version of the MS-PST open specification document can be found here:...

Date: 02/08/2012

Encryption Negotiation in RDP connection The RDP connections between clients and servers are...

Date: 12/07/2011

This article deals with the content contained in ECMA-376 Part 1. The 3rd edition of ECMA-376 was...

Date: 11/14/2011

This blog provides details on how the PassStub is used when establishing a remote assistance session...

Date: 10/31/2011

This article will explain how to edit and deploy an “in-box”Netmon parser. By...

Date: 08/08/2011

Alternate Calendars As you may or may not be aware, Outlook supports multiple calendars. Not only...

Date: 07/28/2011

Yesterday, the Office Interoperability team announced the public release of the Beta version of the...

Date: 07/13/2011

What is NegoEx ? Why do we need it ? Before Windows 7 was introduced, applications utilize the...

Date: 06/30/2011

In today’s fast-paced market, availability of an individual is increasingly important. Thus...

Date: 06/30/2011

EMF File Overview Generally, most people are familiar with two types of graphics files: bitmap and...

Date: 06/28/2011

Hi y’all, Sebastian from Texas here! I’ve been at the File Sharing Plugfest last week....

Date: 06/28/2011

I am writing this blog in response to a need I felt when I was new to authentication in Windows. The...

Date: 06/24/2011

Incremental Change Synchronization ICS provides a means for the client to replicate changes in a...

Date: 06/20/2011

In Part 2, I concluded my dissection of the rights managed email message example, with locating the...

Date: 06/14/2011

Exploring the CFB File Format 9 File SecurityDue to the nature of a compound file, a single file in...

Date: 06/10/2011

Exchange ActiveSync Provisioning EAS Provisioning is a means to download and apply devices on an...

Date: 06/09/2011

Exploring the CFB File Format 8 Range Lock Sectors A range lock sector is a part of a CFB file that...

Date: 06/09/2011

Exploring the CFB File Format 7 ------------------------------- [- Red-Black Trees -] As we have...

Date: 06/09/2011

If you were not already familiar with decoding Exchange Server to Client communication, or have done...

Date: 06/07/2011

In one of my previous...

Date: 05/30/2011

Intro I have recently received some inquiries about [MS-SSTP]. I must admit that I had to review...

Date: 05/23/2011

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