1. When you right-click a blank area on the desktop on a computer that runs Windows XP Personal or Professional, the shortcut menu does not display the Active Desktop command because by default, it is disabled, [Q290247]. Web Content (right-click the desktop, Properties, Desktop tab, click Customize Desktop, in the Desktop Items dialog box, click the Web tab, then click New, and follow the instructions) is sometimes called Active Desktop.
2. To enable, [Q297846]:
a. Click Start, Run, type: gpedit.msc, and then either click OK or press ENTER.
b. Locate the policy settings in the User Configuration\Administrative Templates\Desktop\Active Desktop folder.
c. Right-click Enable Active Desktop, click Properties, click Enabled, and then click OK.
3. Active Desktop is disabled when the value of the ActiveDesktop property (NoActiveDesktop found in the right window) is set to a numeric zero instead of a one in the following registry addresses:
4. The article [Q305117] warns that when you try to display icons and icon labels that have a transparent background or a drop-shadow effect, the backgrounds of the icon and of the desktop text is the same as the background color that is set in the Advanced Appearance dialog box in Display Properties which occurs if you use desktop content that turns on the Active Desktop feature.
5. The by default "Pop-up Blocker" a new feature in Internet Explorer, blocks most unwanted pop-up windows from appearing and the automatic and background pop-up windows are blocked, but the pop-up windows that are opened by the user will still open in the usual manner.
Note: The article [Q843015] explains that after installing Microsoft Windows XP Service Pack 2 (SP2), pop-up windows may still appear, even though the Pop-up Blocker feature is turned on, occurs for the following reasons, and describes troubleshooting tips:
a. You click a link that opens a pop-up window.
b. The Web site where the pop-up window originates is either in the Trusted sites Web content zone or the Local intranet Web content zone. Because Web sites in these zones are considered safe, their pop-up windows are never blocked.
c. The pop-up window is opened by software that is running on the computer.
d. The pop-up window is opened by ActiveX controls that are enabled from a Web site.
6. Supplemental reading:
a. "A Description of the Changes to the Security Settings of the Web Content Zones in Internet Explorer 6 (Q300443)."
b. Troubleshooting Web Content Problems."