This article was previously published under Q242001
This article has been archived. It is offered "as is" and will no longer be updated.
When you attempt to connect to a Windows 2000 domain-based Distributed File System (DFS) share using a Windows NT-based client, you may receive the following error message:
System error 53 has occurred. The network path was not found.
This problem occurs because Windows 2000 includes new DFS fault tolerant features not implemented in the Windows NT version of the Mup.sys file.
Windows NT Server or Workstation 4.0
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
152734how to obtain the latest windows nt 4.0 service pack
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:
To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition.
This problem was first corrected in Windows NT Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6.
The changes included in this fix permit Windows NT-based clients to use aliasing to obtain access to Domain-based DFS shares.
Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition, Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Server 4.0 Enterprise Edition, Microsoft Windows NT Workstation 4.0 Developer Edition