CP865
From Just Solve the File Format Problem
Code Page 865 (CP865, DOS 865, DOS CP865, DOS Nordic) is an 8-bit character encoding. It is a member of the family of MS-DOS encodings intended for use with the Nordic languages. The lower half is the same as CP437 (and ASCII), and the upper half has accented letters and a few other things such as box drawing characters and symbols, including some Greek letters (but not an entire Greek alphabet) mostly for use in mathematics.
The MBBS and BBBS BBS software used the code IBN to refer to this encoding.
