Code page 951

Code page 951 is IBM's PC Data DBCS code. This is also the IBM KS code. This code page supports the Korean language. Code page 949 is a superset of this code page. It is also a misnomer for a hack used in HKSCS-2001 support in Windows XP, derived from the file name. The "new" code page is a replacement for CP950 with Unicode mappings for some Extended User-defined Characters (EUDC) found in HKSCS. HKSCS characters without a Unicode mapping are assigned a Unicode Private Use Area (PUA) code point following previous practises.

...
Wikipedia