You may experience any one of the following symptoms:
- When you copy a file over a network in Microsoft Windows
XP, if the source file is located on a Microsoft Windows 2000-based network
share, you may receive either of the following error messages:
File or network path no longer exists.
No network provider accepted the given network
- When you try to open a file from a network share, the file
may take longer than expected to open.
- You may receive various error messages or experience other
issues when you use a program that opens and closes files or that creates
temporary files on the server if the Windows 2000-based server has Server
Message Block (SMB) signing turned on.
- A file that you opened over the network is opened as
read-only, or a sharing violation occurs and you must save the file locally to
This issue may occur even if your permissions are set
to Full Control for both the share and the volume that uses the NTFS file
system, and no other user has the file open. In this case, you may receive one
of the following error messages:
File in use:
Filename is locked for editing by
username. Click 'Notify' to open a read-only copy of
the document and receive notification when the document is no longer in
This command is not available because the
document is locked for editing.
Filename is locked for editing by another user. To
open a read-only copy of his document, click...
File is locked for editing, do you want to open a read-only
version of the file.
Filename on network
share. Make sure a disk is in the drive you
Access is denied. The file may be in
use by another application.
- When you open files, programs such as Microsoft Excel or
Microsoft PowerPoint may open two files successfully but display a "Read-Only"
error message when you open a third file.
- When you open or when you close files, network programs
that rely on heavy network file input/output (I/O) may seem to stop responding,
or delays may occur.
- You may experience issues when Windows XP applies group
policies or runs logon scripts.
- You can save a Microsoft Office file by using the same file
name only after you have the file open for at least 30 minutes.
- You may also receive other error messages, depending on the
program that you are using. For example, you may receive error messages that
indicate that a file is already in use or that a file can be opened only as
This issue may occur if any one of the following conditions
- There is an issue with negotiating SMB signing from a
client that is running Microsoft Windows XP Service Pack 1 (SP1) to a Windows
2000-based server that requires SMB signing.
- Another process has the file open and locked. For example,
this issue may be caused by either of the following items:
- The network folder is open in Microsoft Windows
Explorer and you are using Details view to display additional details (such as
the author or title) for files in the folder. Windows Explorer reads the
contents of the files in the folder to obtain the additional details. If a
program tries to open a file exclusively and Windows Explorer has the network
file open to extract this additional file information, a sharing violation
- Another program or process, such as an antivirus
program (either on the client computer or on the server), may have the file
This workaround may make your computer or your network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.Note
An antivirus program is designed to help protect your computer from viruses. You must not download or open files from sources that you do not trust, visit Web sites that you do not trust, or open e-mail attachments when your antivirus program is disabled.
For additional information about computer viruses, click the following article number to view the article in the Microsoft Knowledge Base:
Computer viruses: description, prevention, and recovery
To resolve this issue, follow these steps:
- Download and install the MS02-070 security update that is
described in Microsoft Knowledge Base article 329170 on all Windows 2000-based
and Windows XP-based file servers and client computers.
For additional information about
this update, click the following article number to view the article in the
Microsoft Knowledge Base:
MS02-070: Flaw in SMB signing may permit Group Policy to be modified
- Upgrade any Windows XP-based client computers to Windows XP
Service Pack 1 (SP1), and then obtain and install the hotfixes that are
described in Microsoft Knowledge Base articles 328170 and 812937.
information about how to obtain Windows XP SP1, click the following article
number to view the article in the Microsoft Knowledge Base:
information about how to obtain the hotfixes, click the following article
numbers to view the articles in the Microsoft Knowledge Base:
How to obtain the latest Windows XP service pack
File Lock or Access Denied error message when you save files over the network
Program opens a file as read-only or returns a sharing violation or "Access Denied" message when opening from or saving to a network folder
- If you have not resolved the issue, disable network drive
scanning in your antivirus program. To turn off your antivirus program, see the
antivirus program documentation or online help for steps and information about
how to do this.
If the issue is still not resolved, temporarily turn
off your antivirus program. Sometimes, you may have to remove antivirus
software on both the client and the server to troubleshoot this issue. If
removing or disabling your antivirus program does not resolve the issue, contact the
manufacturer of your antivirus program for additional information about this
issue and the steps that you must take to resolve the issue. For example, visit
the following third-party Web sites for information about how to resolve this
issue with specific antivirus products: Microsoft
provides third-party contact information to help you find technical support.
This contact information may change without notice. Microsoft does not
guarantee the accuracy of this third-party contact information.
Network Monitor traces may show "DOS Error, (5)
ACCESS_DENIED" or "DOS Error, (32) SHARING_VIOLATION" error messages after 35
seconds (between "SMB: C NT create & X" commands for the same file name).
The time that the server waits for an Oplock Break response is controlled by
parameter OplockBreakWait. By default, this
parameter is set to 35 seconds.
For more information about how to work
around logon delays, click the following article number to view the article in the Microsoft Knowledge Base:
Logon delays occur over a slow connection if opportunistic locking is not granted for the policy file in Windows
additional information, click the following article numbers to view the
articles in the Microsoft Knowledge Base:
Level II oplocks are not granted after a file is locked
Searching files across a network may leave open files
Configuring opportunistic locking in Windows
File takes an unexpectedly long time to open through server message block protocol
Slow network performance when you open a file that is located in a shared folder on a remote network computer
Cannot delete shortcut on a network share: "It is being used by another person or program"
Program may raise a sharing violation when a file is opened from Windows Explorer
User authentication to services such as Microsoft Exchange Server may time out on a member server