Windows 10 Creators update breaks character client Spanish keyboard
After the Windows 10 Creators update the character client interprets keyboard entered extended characters incorrectly. For example with the Spanish keyboard the Masculine ordinal indicator ('º' - like a small 'o' with a line under it) and the Feminine ordinal indicator ('ª' - like a small 'a' with a line under it) are converted to Windows 1252 character values, when they should use the DOS OEM code page values. For example before Creators is installed the character client displays the values as follows. The second display shows the values received when the keys are typed using the code:
REPEAT:
READKEY.
DISPLAY LASTKEY CHR(LASTKEY).
END.
After installing the Creators update the characters are displayed incorrectly: