This Lecture series are originally not free like any others. So lecture files are locked.
To use this files, follow this please.
1. Unzip where GVA2000_Student.exe and GVA2000_cr.exe are.
2. Run GVA2000_Student.exe. 2.1 During Installation of it, Press (N) or (Y) labled button. (N) means Next and (Y) means Yes in Korean. As usual, Installation Folder is C:\Program Files\GVA2000\
3. And then, Run GVA2000_cr.exe that is to crack GVA Player installed before. 3.1 Press button labled with . 3.2 Then Select the folder where GVA Player(GVAStudent.exe) is installed. And you will see message.
4. Finally, you can double-click a lecture file.
Korean Language is known as very scientific one. But this language is also very unfamilliar to non-Korean like you.