Now follow either the manual process or used the automated tool from the How-To Geek article above to add your custom file types to the preview pane. Navigate your registry key tree to computer\HKEY_CLASSES_ROOT\.nfo You should see a string value named default, with a type of REG_SZ, and containing the data MSInfoFile. Open up your registry editor by typing regedit in the start menu's run dialog and hit enter No workaround was available for windows 7 that I was able to find so I thought I would show you how to do that.įirst use the manual steps or the automated tool(PreviewConfig) from the how-to geek article above on the file extension of your choice.įor this article I'm going to add. While the process for adding file types for vista was already worked out Add File Types to Vista's Preview Pane Myself and I'm sure many others have struggled with how to add custom file types to the preview pane for windows 7.