The shortcut's target is the file that opens when you double-click the shortcut. Enter the path and file name of the shortcut's target file if you're relying on it to be present on the target system, or select a file from the list if you're distributing the shortcut's target in your setup. Enter the path and file name of the shortcut's target file, or click the Browse button to navigate to the file.
Instead of hard-coding a path, use a Windows Installer folder property for the file's source. Separate subfolders with a backslash—for example, [WindowsFolder]\Help\Iexplore.chm.