Windows-1251 Character Table

Windows-1251 encodes the Cyrillic alphabet used by Russian, Ukrainian, Bulgarian, Serbian, and other Slavic languages. Microsoft designed it for Windows 3.1 as a single-byte alternative to the earlier KOI8-R encoding. The Russian letters occupy codes 192 through 255 (uppercase A through Ya at 192 through 223, lowercase at 224 through 255), which puts them in alphabetical order. KOI8-R uses a different arrangement where the bit pattern of each Cyrillic letter matches its Latin transliteration, so garbled KOI8-R text is still partly readable in ASCII. CP1251 dropped that trick in favor of sorted order.