Microsoft KB Archive/301117

= Slow Performance Transferring Large Data Blocks with RPC =

Article ID: 301117

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q301117



SYMPTOMS
When you transfer large blocks of data by using RPC over the NCACN_IP_TCP protocol, a performance drop may occur in Windows 2000. When the request exceeds 128 kilobytes (KB), the transfer rate is only roughly .87 MB/second.



RESOLUTION
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 the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:   Date        Time      Version        Size     File name 7/5/2001  11:02a   5.0.2195.3761   940,304   Ole32.dll 7/5/2001  11:02a   5.0.2195.3800   427,792   Rpcrt4.dll 7/5/2001  11:02a   5.0.2195.3761   185,104   Rpcss.dll

With this hotfix, the transfer rate is around 8.55 MB/second.



STATUS
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 3.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: kbNetworking

Keywords: kbbug kbfix kbwin2000presp3fix kbqfe kbwin2000sp3fix kbnetwork kbhotfixserver KB301117

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