Drive Viewer is a utility that can provide information about any changes made to your hard drive. First, it allows you to list the contents of your drive including full information on each of them such as name, size, location,etc . Secondly, it also gives you the possibility to check the files for a specificclass (dll, exe, ocx, etc..) that were added or deleted during a software installation. To do this, simply choose the destination directory and file extension in question. Finally, Drive Viewer can also be used to display the list of files added and deleted without your knowledge.