The character set used in Windows 2000 operating system is
ans will be C
Since Windows 2000 offers a nice Unicode API and supports non-BMP characters. It usesUnicode strings implemented as wchar_t* strings (LPWSTR). wchar_t is 16 bits long on Windows and so it uses UTF-16: non-BMP characters are stored as two wchar_t (a surrogate pair), and the length of a string is the number of UTF-16 units and not the number of characters.
Windows 95, 98 an Me had also Unicode strings, but were limited to BMP characters: they usedUCS-2 instead of UTF-16.