Windows is notorious for this---its code page (i.e. character encoding and thus effectively language and script) is directly tied to the locale. Most importantl

Windows is notorious for this---its code page (i.e. character encoding and thus effectively language and script) is directly tied to the locale. Most importantly this meant the same code page 950 (Big5) was used for both Taiwan and Hong Kong. Hong Kong had its own extension to Big5 called HKSCS, so they could be distinguished only by the OS edition. (Internally Big5+HKSCS has a separate code page 951, but AFAIK this wasn't exposed publicly.)