This article was previously published under Q191242
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When you view a folder as a Web page and click a multimedia file, apreview of the file may not be displayed on the left side of the rightpane. This behavior occurs because the preview feature is set to disabledby default.
To enable the multimedia preview feature:
In Windows Explorer, click the Windows folder, and then double-click the Web folder.
On the View menu, click Customize This Folder, click Next, and then click Next.
On the Search menu, click Find, type wantmedia, click Find Next, and then click Cancel.
Change the false entry in the following line to true:
var wantMedia = false; // cool, but may hinder media file manipulation
After you make this change, the line should look like this:
var wantMedia = true; // cool, but may hinder media file manipulation
On the File menu, click Save.
Quit Notepad, click Finish, and then quit Windows Explorer.
For additional information about the Folder.htt file and customizingfolders, please see the following articles in the Microsoft Knowledge Base: