[cifs-protocol] [REG:111051760827237] SMB_COM_NT_TRANSACT response with SetupCount != 0

Obaid Farooqi obaidf at microsoft.com
Tue May 17 11:05:36 MDT 2011

Hi Volker:
Thanks for contacting Microsoft regarding your inquiry on SMB_COM_NT_TRANSACT response. A member of the protocol documentation team will be in touch soon.

Obaid Farooqi
Escalation Engineer | Microsoft

Exceeding your expectations is my highest priority.  If you would like to provide feedback on your case you may contact my manager at allisong at microsoft.com

-----Original Message-----
From: Volker Lendecke [mailto:Volker.Lendecke at SerNet.DE]
Sent: Tuesday, May 17, 2011 6:15 AM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org; pfif at tridgell.net; Tom Talpey; ambi at samba.org
Subject: SMB_COM_NT_TRANSACT response with SetupCount != 0

Hi, Dochelp!

When querying previous version from Windows 2008 we have encountered a broken display when run against Samba (see snapproblem.jpg). This does not happen when run against another Windows 2008 box. The only significant difference we discovered is that Windows 2008 as a VSS server does fill the

    UCHAR  SetupCount;
    USHORT Setup[SetupCount];

field as listed in


with something that looks like a copy of the data we've sent it in the request according to


just offset by 2 bytes.

Please explain where it is documented that Windows 2008 responds with Setup filled with something, we could not find it in the docs, 


does not list anything.

In the attached trace (win2008snap.cap), please see frames
285 and in particular 286 as reference.


Volker Lendecke

SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen
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