File May Be Truncated When Copied to a Full Network Drive

View products that this article applies to.

This article was previously published under Q161100

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SYMPTOMS

If you use Windows Explorer on a Windows-based computer to copy a file to an SMB (Server Message Block) server using the Microsoft Client for Microsoft Networks, the file may be truncated if the server's disk is full or nearly full.

The copy operation may seem to succeed, and no error message is displayed. However, some data at the end of the file may be lost.

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CAUSE

This can occur if the amount of free disk space on the server is slightly less than the size of the file being copied.

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RESOLUTION

To resolve this issue, make sure the disk on the network server contains sufficient free space for the file being copied.

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later.

Windows 95:

   File name    Version   Date     Size
   ---------------------------------------------
   Vredir.vxd   4.00.958  7/23/96  140,403 bytes
   Shell32.dll  4.00.954  7/23/96  817,664 bytes

Windows 98:

   File name   Size     Date      Time   Version
   -----------------------------------------------
   Vredir.vxd  165,461  08/13/99  02:36  4.10.2149

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STATUS

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

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MORE INFORMATION

If the operation being performed is a move operation instead of a copy operation, or if the original file is deleted after being copied, the lost data may not be recoverable except by restoring from a recent backup.

For additional information about issues resolved by updates to these components, please see the following articles in the Microsoft Knowledge Base:

183493 (http://support.microsoft.com/kb/183493/EN-US/ ) Batch File Calling CD Command May Not Run on HPFS

174371 (http://support.microsoft.com/kb/174371/EN-US/ ) Possible Database File Damage When Data Is Appended

172594 (http://support.microsoft.com/kb/172594/EN-US/ ) Cannot Connect to Server with 15 Characters and Period in Name

167712 (http://support.microsoft.com/kb/167712/EN-US/ ) Fatal Exception Error in VREDIR with DCOM Program

165403 (http://support.microsoft.com/kb/165403/EN-US/ ) Windows 95 Update Prevents Sending Clear-Text Password Over Net

165402 (http://support.microsoft.com/kb/165402/EN-US/ ) Windows 95 Update to Encrypt Passwords in Memory

160807 (http://support.microsoft.com/kb/160807/EN-US/ ) Cannot Connect to Windows NT Server with Many Shares

157114 (http://support.microsoft.com/kb/157114/EN-US/ ) "Access Denied" Attempting to Run File on LM/X Server

152186 (http://support.microsoft.com/kb/152186/EN-US/ ) Possible Network Data Corruption If Locking Not Used

150215 (http://support.microsoft.com/kb/150215/EN-US/ ) : Disabling Automatic Network Shortcut Resolution

148367 (http://support.microsoft.com/kb/148367/EN-US/ ) Possible Network File Corruption with Redirector Caching

142803 (http://support.microsoft.com/kb/142803/EN-US/ ) Locking Error or Computer Hangs Accessing Network Database Files

140558 (http://support.microsoft.com/kb/140558/EN-US/ ) Deleting Files on Samba Servers May Delete Local Files Instead

138249 (http://support.microsoft.com/kb/138249/EN-US/ ) Updated Vredir.vxd Corrects Errors Running Files on LMX

138014 (http://support.microsoft.com/kb/138014/EN-US/ ) File May Be Truncated to Zero Bytes When Copied Onto Itself

136834 (http://support.microsoft.com/kb/136834/EN-US/ ) Error Copying Read-Only Files to Core SMB Server

150215 (http://support.microsoft.com/kb/150215/EN-US/ ) Disabling Automatic Network Shortcut Resolution

138014 (http://support.microsoft.com/kb/138014/EN-US/ ) File May Be Truncated to Zero Bytes When Copied Onto Itself

136834 (http://support.microsoft.com/kb/136834/EN-US/ ) Error Copying Read-Only Files to Core SMB Server

160807 (http://support.microsoft.com/kb/160807/EN-US/ ) Cannot Connect to Windows NT Server with Many Shares

For additional information about Windows 95 updates, please see the following article in the Microsoft Knowledge Base:

161020 (http://support.microsoft.com/kb/161020/EN-US/ ) Implementing Windows 95 Updates

For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:

206071 (http://support.microsoft.com/kb/206071/EN-US/ ) General Information About Windows 98 and Windows 98 Second Edition Hotfixes

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