RegSupreme Pro's Add/Remove menu shows you the list from the Add/Remove control panel applet but with the facility to remove obsolete items from the list. 

RegSupreme Pro's File types tab shows you all the registered file types. You can remove the type registrations for programs you uninstalled. 

RegSupreme Pro's Installed Software tab contains a list of software from various places inside the registry. Programs that were removed still leave some of these entries behind. 

RegSupreme Pro's Shell Extensions tab contains a list of all registered shell extensions. The program allows you to remove unneeded shell extensions. 

RegSupreme Pro's Search Menu tab allows you to view and/or remove search menu categories. 

RegSupreme Pro's Registry cleaner scans your registry for errors and displays the list at the end of the scan. You can select the registry errors you wan to fix/delete from this list. 

RegSupreme Pros's New File tab shows the list of file types you can create with the right click > New menu. You can remove file types you do not need from here.