Phillipe commented: "(even if later Microsoft decides to map some other characters in its own "windows-1252" charset, like it did several times and notably when the Euro symbol was mapped)".
Personal opinion, but I'd be very surprised if Microsoft ever changed the 1252 charset. The euro was added back in 1999 when code pages were still used a lot. Code pages in general are pretty much irrelevant today except for reading legacy documents. They are virtually never used internally in modern software. UTF-8,UTF-16, and UTF-32 are what are used these days. (But code pages do have the advantage that they are associated with specific character repertoires, which amounts to a great hint for font binding...) Murray
