Microsoft KB Archive/250542

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"Msnls.dll Cannot Be Found" Error Message When Browsing with AOL Software

Article ID: 250542

Article Last Modified on 11/1/2006


  • Microsoft Internet Explorer 5.0
  • Microsoft Internet Explorer 4.0 128-Bit Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition

This article was previously published under Q250542


When you browse the Internet with Internet Explorer on your Windows NT-based computer and America Online (AOL) as your Internet Service Provider (ISP), you may periodically receive the following error message:

msnls.dll cannot be found.

Also, the Msnls.dll file cannot be located on your AOL or Windows NT installation media.


This issue can occur if you are using an out of date version of the AOL software. Older versions of the AOL software periodically try to use the Msnls.dll file included with Internet Explorer version 3.x.


To resolve this issue, obtain and install version 5.0 (or later) of the AOL software. For information about how to do so, contact AOL.

NOTE: AOL does not support running the AOL software on Windows NT-based computers, but the current version of their software does not require use of the Msnls.dll file.


Another way to resolve this issue is to create a "dummy" file. You can create a "dummy" file and add it to the system directory of NT (normally winnt\system). To do this, do one of these methods:

  1. Create a new file on the system directory of NT:
    • Navigate to and open Notepad on your computer.
    • Add some sample text to the body of the Notepad file.
    • Select File, and save as Msnls.dll.
  2. Copy a file to the system directory of NT and rename the file Msnsls.dll.

Keywords: kb3rdparty kbenv kberrmsg kbprb KB250542