Article ID: 919797
Article Last Modified on 12/3/2007
APPLIES TO
- Microsoft Windows Server 2003, Web Edition
- Microsoft Windows Server 2003, Standard Edition (32-bit x86)
- Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
- Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
- Microsoft Windows Small Business Server 2003 Premium Edition
- Microsoft Windows Small Business Server 2003 Standard Edition
- Microsoft Internet Information Services 6.0
SYMPTOMS
When you use a client application, such as a Web browser or a Microsoft ASP.NET application, to connect to a server that is running Microsoft Internet Information Services 6.0 (IIS), you may receive one or more of the following error messages:
Error message 1
Error message 2
Error message 3
This problem may also occur when the following conditions are true:
- You try to download files from a server that is running IIS 6.0 to a client computer that has a slow connection.
- You try to download very large files.
To confirm that this problem is related to the throughput timer, check the HttperrX.log file on the server that is running IIS for entries that contain a Timer_MinBytesPerSecond error message that resembles the following:
CAUSE
This problem occurs because of an error in the Http.sys file.
RESOLUTION
To resolve this problem, obtain the latest service pack for Microsoft Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003
WORKAROUND
If this problem persists after you install the latest service pack for Windows Server 2003, the network connection may be too slow. Use a network trace to determine whether the client is delayed in receiving the response and the packet retransmissions. To work around this problem, reduce or disable the MinFileBytesPerSec property in IIS 6.0 to prevent a slow client connection from being closed prematurely.
Confirm the MinFileBytesPerSec property value
To confirm the current setting, follow these steps:
- Click Start, click Run, type cmd, and then click OK.
- At the command prompt, type the following command, and then press ENTER:
The current minimum bytes per second appears.
cscript adsutil.vbs get w3svc/MinFileBytesPerSec
Reduce the MinFileBytesPerSec property value
To reduce the MinFileBytesPerSec property to 50 bytes per second, follow these steps:
- Click Start, click Run, type cmd, and then click OK.
- At the command prompt, type the following command, and then press ENTER:
cscript adsutil.vbs set w3svc/MinFileBytesPerSec 50
Disable the MinFileBytesPerSec property
To disable the MinFileBytesPerSec property, follow these steps:
- Click Start, click Run, type cmd, and then click OK.
- At the command prompt, type the following command, and then press ENTER:
cscript adsutil.vbs set w3svc/MinFileBytesPerSec 0
STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
REFERENCES
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
820729 Error logging in HTTP API
886461 FIX: You cannot download large files from an ASP.NET application on a computer that is running IIS 6.0
Keywords: kbfix kbhttp kbasp kbtshoot kbbug KB919797
