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A link that has a specified target always opens in a new window if Internet Explorer is the startup program in a Terminal Services session or the shell for the operating system
Article ID: 837247 - View products that this article applies to.
Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/256986/ )Description of the Microsoft Windows Registry
When you click a link that has a specified target in Microsoft Internet Explorer, a new window always opens even if the target window is already open. This only occurs if Internet Explorer is the shell for the operating system or if Internet Explorer is the startup program in a Terminal Services session.
This problem occurs when you create a new window in Internet Explorer, but you do not set the WindowName variable.
To resolve this issue, download and install the fix that is provided in the Microsoft Knowledge Base article 840530. Then make the registry modification described in this section.
For additional information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/840530/ )You cannot gain access to linked Web pages from a Web site that you access through a desktop shortcut in Internet Explorer Service Pack 1
After you install hotfix 840530, make the following modification to the registry to apply this fix.
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.
For additional information about how to resolve this problem, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/811630/ )HTML help update to limit functionality when it is invoked with the window.showHelp method
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This fix was included in Internet Explorer 6 Service Pack 2. However, to enable the fix you must make the register changes that are described in this article.
Steps to reproduce the problem
Typically, you have only two windows. One window for the home page and another window that contains the link that you clicked in the first window.
If you set Internet Explorer as the startup program on the Terminal Server, a new window opens every time instead of refreshing the same target window. This behavior also occurs when Internet Explorer is set as the shell for the operating system.
(http://support.microsoft.com/kb/906473/ )FIX: A new window always opens when you click a link that has a specified target in a WebBrowser control-based application