Microsoft KB Archive/827429

= FIX: Active Server Pages stops responding when a response to a POST operation is redirected to another server by using Microsoft XML 4.0 SP2 =

Article ID: 827429

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft XML Core Services 4.0

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SYMPTOMS
Microsoft Active Server Pages (ASP) stops responding if the following conditions are true:
 * The response to a POST operation from a ServerXmlHttp object is redirected to another server.
 * In Microsoft Internet Explorer, the security policy setting for the Access data sources across domains option is set to either Prompt or Disable.



CAUSE
This problem occurs because a change of behavior that was introduced in Microsoft XML (MSXML) 4.0 Service Pack 2 (SP2) checks the settings in the Internet Explorer security policy. If the Access data sources across domains option is set to either Prompt or Disable, the call to the Response.Redirect method tries to open a dialog box. However, because the Microsoft Internet Information Services (IIS) process cannot display any dialog boxes, ASP stops responding.



RESOLUTION
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

The English version of this hotfix has the file attributes (or later) 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 19-Aug-2003 21:56  4.20.9819.0   1,233,920  Msxml4.dll



WORKAROUND
To work around this problem, change the relevant setting in the Internet Explorer security policy.

Note This workaround does not resolve the problem on a Microsoft Windows Server 2003-based computer that is running in Internet Information Services (IIS) 6.0 mode.

To work around this problem on a Microsoft Windows 2000-based computer, follow these steps:
 * 1) Click Start, click Run, type mmc, and then click OK.
 * 2) On either the File menu or the Action menu, click Add/Remove Snap-in.
 * 3) In the Add/Remove Snap-in dialog box, click Add.
 * 4) On the Standalone tab, click Add.
 * 5) In the Available Standalone Snap-in dialog box, click Group Policy, and then click Add. The Group Policy Wizard starts.
 * 6) In the Group Policy Wizard, click Finish.
 * 7) To close the Add Standalone Snap-in dialog box, click Close.
 * 8) In the Add/Remove Snap-in dialog box, click OK.
 * 9) Under User Configuration, expand Windows Settings, expand Internet Explorer Maintenance, and then click Security.
 * 10) In the right pane, double-click Security Zones and Content Ratings.
 * 11) Under Security Zones and Privacy, click Import the current security zones and privacy settings, and then click Modify Settings.
 * 12) Select the zone that you want to modify, and then click Custom Level.

To determine the zone for this setting, select the same zone as the URL that is the destination of the POST operation.
 * 1) Make sure that the Enable option is selected for the Access data sources across domains option, and then click OK.
 * 2) Restart the process that is running the ServerXmlHttp object. You may have to restart your computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

