*** Updated for 2023 ***
Since we have Virtual Earth localized in Japanese, great imagery and street data in Japan, we figured maybe it would be a good idea to offer developers the ability to leverage other languages and world markets like Bing Maps does. Using the localized version of the Virtual Earth map control is pretty straight forward – you just need to add a parameter for the local language, and if you wish the market, when you reference the map control like:
https://www.bing.com/api/maps/mapcontrol?callback=GetMap&key=${bingKey}&setLang=ja&setMkt=ja-jp
We offer full source samples at Bing Maps Samples (bingmapsportal.com?search=localize) and documentation on how to localize the Web control at Setting Map Control Parameters - Bing Maps | Microsoft Learn and scroll down in the documentation to find the many supported languages and markets.