Download and unzip Ren-cmdservice to your desktop.
It will only work correctly if the folder is placed on your desktop and extracted.
http://downloads.subratam.org/Lon/ren-cmdservice.zip
Open the ren-cmdservice folder by doubleclicking it and then doubleclick the
ren-cmdservice.bat file to run the program.
A text will open when it is finished, Copy it if you can.
Then restart.