File May Be Truncated When Copied to a Full Network Drive

• Microsoft Windows 95

SYMPTOMS

If you use Windows Explorer on a Windows 95-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.

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.

RESOLUTION

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

This issue is resolved by the following updated files for Windows 95, and later versions of these files:

   VREDIR.VXD   version 4.00.958  dated 7/23/96  140,403 bytes
   SHELL32.DLL  version 4.00.954  dated 7/23/96  817,664 bytes 

STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved in Microsoft Windows 98.

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:

Q183493 Batch File Calling CD Command May Not Run on HPFS

Q174371 Possible Database File Damage When Data Is Appended

Q172594 Cannot Connect to Server with 15 Characters and Period in Name

Q167712 Fatal Exception Error in VREDIR with DCOM Program

Q165403 Windows 95 Update Prevents Sending Clear-Text Password Over Net

Q165402 Windows 95 Update to Encrypt Passwords in Memory

Q160807 Cannot Connect to Windows NT Server with Many Shares

Q157114 "Access Denied" Attempting to Run File on LM/X Server

Q156497 Duplicate Print Output on PC-LAN Server from Windows 95 Client

Q152186 Possible Network Data Corruption If Locking Not Used

Q150215: Disabling Automatic Network Shortcut Resolution

Q148367 Possible Network File Corruption with Redirector Caching

Q142803 Locking Error or Computer Hangs Accessing Network Database Files

Q140558 Deleting Files on Samba Servers May Delete Local Files Instead

Q138249 Updated Vredir.vxd Corrects Errors Running Files on LMX

Q138014 File May Be Truncated to Zero Bytes When Copied Onto Itself

Q136834 Error Copying Read-Only Files to Core SMB Server

Q150215 Disabling Automatic Network Shortcut Resolution

Q138014 File May Be Truncated to Zero Bytes When Copied Onto Itself

Q136834 Error Copying Read-Only Files to Core SMB Server

Q160807 Cannot Connect to Windows NT Server with Many Shares

Q161020 Implementing Windows 95 Updates

Keywords : kbenv kbnetwork osr2 win95
Version : WINDOWS:95
Platform : WINDOWS
Issue type : kbprb