After a Windows Vista-based computer uses a Windows HTTP Services (WinHTTP) component, such as the ServerXmlHttp object, to send a POST request to a Web server, the same request is resent to the server.

This behavior occurs if the keep-alive connection that is used for the first POST request is reset by the Web server.

Note: To verify this behavior, you can use a network sniffer, or you can check the WinHTTP log.

Consider the following scenario:

• You install security update 916281 on a Microsoft Windows XP-based computer.
• On the computer, you use Microsoft Internet Explorer 6 to access a Web-based software program.
• This software program was created by using Microsoft ASP.NET. Also, this software program uses the SmartNavigation feature.

In this scenario, the software program cannot import an external style sheet. This problem occurs only after you install security update 916281.

Note: Security update 916281 is described in security bulletin MS06-021.

For more information about security bulletin MS06-021, click the following article number to view the article in the Microsoft Knowledge Base:
916281 MS06-021: Cumulative security update for Internet Explorer

Consider the following scenario. You load a Web page in a WebBrowser control-based application. You click a link that has a specified target. In this scenario, a new window always opens. This problem occurs even if the target window is already open. This problem occurs if one of the following conditions is true:

• The WebBrowser control-based application is the shell for the operating system.
• The WebBrowser control-based application is the startup program in a Terminal Services session.

Consider the following scenario:

• You run Windows Internet Explorer 7 on a Windows Vista-based computer.
• You enable protected mode in Internet Explorer 7.
• You use the innerHTML property in Internet Explorer 7 to change the HTML content in an onload event.

In this scenario, Internet Explorer 7 starts to render the Web page before the handling of the onload event has finished.

You develop a Web page that contains translucent layers. In the Web page, you use the Filter property to adjust the opacity of the translucent layers. When you browse this Web page by using Internet Explorer 7, the translucent layers intermittently turn gray.

In Windows Internet Explorer 7, a Web site cannot set a cookie if the following conditions are true:

• The Domain attribute is in uppercase characters.
• The Domain attribute has an odd number of characters.

  Note: The initial dot is not included in the number of characters. For example, if the cookie tries to set the .EUROPE.CORP.CONTOSO.COM domain name, the cookie cannot be set. This domain name has 23 characters.

When you try to connect to a Web folder by using a network basic input/output system (NetBIOS) name on a computer that is running Windows Vista, you are prompted for the user name and the password.

This issue occurs even though the “Automatic logon with current user name and password” security option is set for the fully qualified domain name (FQDN) of the Web folder in the “Trusted Sites” zone and in the “Local intranet” zone.

For example, this issue occurs when you use one of the following NetBIOS names to connect to the Web folder:

• http://server_name/webdav
• http://server_name.company_name.com/webdav

Note You do not experience this issue in Microsoft Windows XP.

You try to open some Web sites in a Web browser on a Windows Vista-based computer. However, you may experience slow Internet connectivity, and you may receive the following error message:

Page could not be displayed.

After you apply security update 929123, you may be prompted by a dialog box that requests more input about how to continue when you browse a Web site.

If you access an FTP site often, you may want to save time by ‘mapping a drive’ to it. Maximum PC Guides suggests that by using the ‘Map network drive’ function you can add a shortcut to your Computer window. Note that it does not assign a drive letter, it simply creates a shortcut with a name you choose. Keep reading →