I just tested the language software "Deutsch für Koreaner, Expresskurs" (German for Koreans) by sprachenlernen24.de (they had sent me a download link to forward to my Korean guests because I had acquired the "Korean for Germans" software).
Well, it's a nice software with a lot of interesting functions BUT if you don't know any German (and it is meant for absolute beginners!), you will be completely lost - the menu, all explanations on how to use the software, as well as even the installation guide, are in German... They should at least be in English, if not Korean...
If you are interested in trying it out anyway, here are some clues: The software doesn't need any installation, just download and unpack it and open the file "Start_Koreanisch_Express.html" with any internet browser (e.g. Firefox, Internet Explorer, Safari, Netscape,
Mozilla, Galeon,...) - right-click the file with the mouse and choose the browser to open it with. You don't need to be online to use the language software, though (but to access the explanations, "Anleitungen", if I'm not mistaken).
How to use the software? On the left side, one can choose the lessons by clicking "+ Hauptmenü", "Lektionsauswahl". Then click "+ Expresskurs", e.g. "LESEN" (="READ"), "Liste". When you click on the symbol, you will hear the German text pronounced. A phonetic transcription is missing, but the pronounciation is very clear.
To get an idea of what the explanations under "+ Hauptmenü", "EXTRAS", "Anleitungen" are about, you can copy texts into e.g. http://www.5goldig.de/translate.html and translate them for free. Of course by clicking through everything you can also discover the functions of this language software which all in all is really nice, interactive and motivating, e.g. you can get "Tagesaufgaben", daily tasks, and train your memory and so on.