"Access Denied" Attempting to Run File on LM/X Server (157114)


The information in this article applies to:

  • Microsoft Windows 95
This article was previously published under Q157114

SYMPTOMS

When you are using a Windows 95-based computer to connect to a LAN Manager for Unix (LM/X) server, you may receive an "Access denied" error message when you try to run a file that has only Read and Execute permissions.

CAUSE

When a Windows 95-based computer connects to a server using the SMB (Server Message Block) protocol for file and print sharing, it negotiates a dialect level for the connection. Some LM/X servers support only older dialect levels.

When an older dialect is negotiated (the Microsoft Networks 3.0 dialect in this case, also known as Core SMB), the Windows 95 client must use only those SMB commands supported by the down-level server. In this case, the Windows 95 client issues an "open" SMB command, requesting open mode 23 or execute mode. However, the "open" command supports only read, write, and read/write mode, making it an illegal SMB command.

RESOLUTION

To resolve this problem, download the following file from the Microsoft Download Center. Click the file name below to download the file:

Vredrupd.exe

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

This fix for Windows 95 should have the following file attributes (or later): 
   File name     Version    Date      Time      Size
   ----------------------------------------------------------
   VREDIR.VXD    4.00.960   9/20/96   10:00am   140,403 bytes

STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95 and Microsoft Windows 98.

This issue is not resolved in Microsoft Windows 98.

MORE INFORMATION

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

183493 Batch File Calling CD Command May Not Run on HPFS

174371 Possible Database File Damage When Data Is Appended

172594 Cannot Connect to Server with 15 Characters and Period in Name

167712 Fatal Exception Error in VREDIR with DCOM Program

165403 Windows 95 Update Prevents Sending Clear-Text Password Over Net

165402 Windows 95 Update to Encrypt Passwords in Memory

161100 File May Be Truncated When Copied to a Full Network Drive

160807 Cannot Connect to Windows NT Server with Many Shares

152186 Possible Network Data Corruption If Locking Not Used

150215 Disabling Automatic Network Shortcut Resolution

148367 Possible Network File Corruption with Redirector Caching

142803 Locking Error or Computer Hangs Accessing Network Database Files

140558 Deleting Files on Samba Servers May Delete Local Files Instead

138249 Updated Vredir.vxd Corrects Errors Running Files on LMX

138014 File May Be Truncated to Zero Bytes When Copied Onto Itself

136834 Error Copying Read-Only Files to Core SMB Server

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

161020 Implementing Windows 95 Updates

Modification Type:MinorLast Reviewed:8/5/2004
Keywords:KB157114
©2004 Microsoft Corporation. All rights reserved.