This article was previously published under Q258100
This article has been archived. It is offered "as is" and will no longer be updated.
When a program uses both User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) to bind to the same endpoint (the same port and TCP/IP address), performance problems can occur under load. Note that this problem usually occurs with servers that are receiving thousands of items per minute.
This problem has not been reported in a production environment.
This problem can occur if a TCP socket is listening on the same port as a UDP socket.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.