Save Keys - Version 5.1 Save Keys 5.1 is a completely invisible key recorder. A key recorder is a program that "grabs" or "traps" keys from your keyboard and saves them to a file. Save Keys 5.1 can be used to recover unsaved documents, "recover" passwords typed into your computer, or spy on anyone that uses your computer. Save Keys 5.1 is completely invisible, even in the CTRL-ALT-DEL window. If your system language setting is for German, Save Keys 5.1 will display all captions and text in German. German keys will also be recorded. For all other languages, it will default to English.