I honestly don't know what the big deal is here, Windows has supported UNICODE since 1994 in NT4 and with UNICODE fonts, you can produce just about any language on the planet. Natural languages that can be represented with single byte character sets can use the old code page system but it was a pain to use where UNICODE easily handled entirely different language and character formats, Chinese, Japanese, Georgian, Russian etc .....
I am lazy in that as an English speaker, ASCII does the job in most instances where UNICODE requires storing string data in a different manner.