Microsoft KB Archive/927377

= Information about the Windowed SELECT control and about the Windowless SELECT control in Internet Explorer 7 =

Article ID: 927377

Article Last Modified on 10/27/2007

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APPLIES TO


 * Windows Internet Explorer 7

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Notice
Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry



SUMMARY
The two types of SELECT controls that are included in Windows Internet Explorer 7 are the Windowed SELECT control and the Windowless SELECT control. This article contains information about these controls.



MORE INFORMATION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.The Windowed SELECT control was implemented as a wrapper of a native shell common control in Microsoft Internet Explorer 6 and in earlier versions of Internet Explorer. The Windowless SELECT control was implemented as a fully intrinsic element in Internet Explorer 7.

The Windowless SELECT control was designed to replace the Windowed SELECT control in Internet Explorer 7. However, this design change has triggered some compatibility issues with Microsoft Office 2003 and with earlier versions of Office. For Internet Explorer 7 to support the Windowed SELECT control in Office 2003 and earlier versions, the following registry subkey is added when you install Internet Explorer 7:

The following are the default registry DWORD entries for the FEATURE_USE_WINDOWEDSELECTCONTROL subkey:

These default registry entries determine what type of SELECT control these applications are using. If you make any changes to these values, this may break the hosting behavior of these applications in Internet Explorer 7.

By default, the Windowless SELECT control is used when MSHTML is loaded under the following circumstances:
 * For applications that do not have a DWORD entry
 * For applications whose DWORD value is set to 0

The Windowed SELECT control is used for applications that have a DWORD value that is set to 1.

