Preview Config was developed to offer a comfortable way to add new file extensions to the list of supported file extensions. Before I explain the software I’m going to show you how you can enable the Preview Pane in Windows Vista. To enable it you need to click on Organize | Layout | Preview Pane in the folder’s menu.

Once you start Preview Config you notice a large list of file extensions on the left side. Selecting a file extension from the left menu will display information about it in the right pane. It will display if there if the file is currently set for previews and if that is the case if it is a text file, multimedia file or Other. Adding new file extensions to the preview pane is therefor done in a matter of seconds.

The user picks a file extension from the left pane and selects the appropriate type in the right pane. For php for instance it would be plain-text. The tool can be used to unregister previews for certain file types as well.