216500 INT 21 - Windows95 (OSR2) - SET GENERAL INTERNATIONALIZATION INFO
2165 INT 21 - DOS 3.3+ - GET EXTENDED COUNTRY INFORMATION
2165 INT 21 - DOS 4.0+ - COUNTRY-DEPENDENT CHARACTER CAPITALIZATION
216523 INT 21 U - DOS 4.0+ - DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE
2165 INT 21 U - DOS 4.0+ internal - COUNTRY-DEPENDENT FILENAME CAPITALIZATION