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File copy operations to a DFS share perform slowly in Windows Server 2003 or in Windows XPArticle ID: 839231 - View products that this article applies to. On This PageSYMPTOMSWhen you copy files from Microsoft Windows Server 2003 or from Microsoft Windows XP to a Microsoft distributed file system (DFS) share or to a Samba DFS share, the file copy process is very slow. This problem occurs when you copy files to the DFS share, and you specify explicit credentials. If you copy files from the DFS share, you do not experience this problem. CAUSEThis problem occurs if you explicitly specify the credentials to use when you connect to the DFS share. In this scenario, a new TCP session and an SMB session is opened four times for every file that is copied to the DFS share. A NetBIOS session may also open four times for every file that is copied to the DFS share. RESOLUTIONHotfix informationMicrosoft Windows Server 2003A supported hotfix is 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 software update that contains this hotfix.If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesThere are no prerequisites.Restart requirementYou must restart your computer after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other hotfixes.File informationThe English version of this hotfix 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.Windows Server 2003, 32-bit editions Date Time Version Size File name -------------------------------------------------------- 24-Mar-2004 22:28 5.2.3790.144 106,496 Mup.sys Windows Server 2003, 64-Bit Enterprise Edition Date Time Version Size File name --------------------------------------------------------- 24-Mar-2004 22:19 5.2.3790.144 304,640 Mup.sys Microsoft Windows XPA supported hotfix is 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 software update that contains this hotfix.If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesYou must have Windows XP Service Pack 1 (SP1) installed to apply this hotfix. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:322389
(http://support.microsoft.com/kb/322389/
)
How to obtain the latest Windows XP service pack
Restart requirementYou must restart your computer to apply the changes after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other hotfixes.File informationThe English version of this hotfix 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.Windows XP, 32-bit editions Date Time Version Size File name -------------------------------------------------------- 22-Mar-2004 3:33 5.1.2600.1366 104,704 Mup.sys Windows XP, 64-Bit Edition Date Time Version Size File name --------------------------------------------------------- 22-Mar-2004 3:12 5.1.2600.1366 354,176 Mup.sys STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. MORE INFORMATION For additional information, click the following article number to view the article in the Microsoft Knowledge Base: 824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard terminology that is used to describe Microsoft software updates PropertiesArticle ID: 839231 - Last Review: December 1, 2007 - Revision: 3.3 APPLIES TO
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