Microsoft KB Archive/823356

= Large Files Copy Slowly from a Macintosh Computer to a Windows Server 2003-based Computer That Is Running Services for Macintosh =

Article ID: 823356

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

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SYMPTOMS
When you copy a large file from a Macintosh computer to a Microsoft Windows Server 2003-based computer that is running Services for Macintosh, the file copies slowly.



CAUSE
This issue may occur if Windows Server 2003 does not send the final Reply-DSI-Write signal during the transfer of each data block. The Macintosh computer must wait for this signal before it can send more data. When the Macintosh computer does not receive this signal, it waits for about 50 milliseconds, and then it sends an ACK signal to the Window Server 2003-based computer. The ACK signal causes Windows Server 2003 to send the Reply-DSI-Write signal, and the file copy continues. When you copy a large file, these delays add up and increase the time it takes to copy the file.



Hotfix Information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

File Information
The English version of this has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.  Date        Time   Version       Size     File name   Platform ---  20-Jun-2003  18:47  5.2.3790.65   156,160  Sfmsrv.sys  x86 20-Jun-2003 18:47  5.2.3790.65   466,944  Sfmsrv.sys  ia64



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB823356

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