Extract and run ConvertXtoDVD*Portable.
Working folder set by user. If you just burn you can set it in TEMP (deleted when leaving) with WorkingFolder=temp in ConvertXtoDVD*Portable.ini. You can also set it in portable folder with WorkingFolder=portable (the worst on USB key).
Sound events language set by launcher according localisation of Windows : English, French, German, Japanese,Spanish.
Settings of installed ConvertXtoDVD should be preserved.