You receive an error message when you try to use an HTTP POST to upload a large file to a Web server through an Internet Security and Acceleration Server 2000 computer (870989)

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Internet Security and Acceleration Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To install this hotfix, you must have ISA Server 2000 Service Pack 2 installed.

For additional information about how to obtain ISA Server 2000 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You do not have to restart your computer to install this hotfix. However, the following services are automatically restarted during the installation of this hotfix:

• Microsoft Web Proxy
• Routing and Remote Access
• Microsoft Firewall
• Microsoft ISA Server Control

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time    Version        Size      File name 
   --------------------------------------------------------
   12-Oct-2004  23:34   3.0.1200.404   401,912   W3proxy.exe	
 	

Hotfix installation instructions

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

After you install this hotfix, you must configure a registry entry to enable the hotfix. To do this, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3Proxy\Parameters

3. On the Edit menu, point to New, and then click DWORD Value.
4. Type AllowPrematureServerResponse as the entry name, and then press ENTER.
5. Right-click AllowPrematureServerResponse, and then click Modify.
6. In the Value data box, type a value of 1, and then click OK.
7. Quit Registry Editor.
8. Restart the Microsoft Web Proxy service. To do this:
   1. Click Start, click Run, type services.msc, and then click OK.
   2. Right-click Microsoft Web Proxy, and then click Restart.