I am still hosting the calculator.
Pity so many are only signing up just to enquire their radio code though.
If you have a PC - here is a direct and no nonsense link to the file.
LINK REMOVED
When prompted. download (SAVE) it - then open the zip, drag the file "CALC PHILIPS DE DOS.exe" onto your desktop or where you want - then run it, enter your code and press the 'RETURN/ENTER' keyboard key.
Works on new Windows 10 and all previous Windows platforms - probably not on Android, etc.