The packages (lhcyralt and lhcyrwin for use under emTeX, and lhcyrkoi for use under teTeX) provide mappings between the input encoding and the font encoding (which is described as OT1). The way this is done does not match the way inputenc would do the job, for output via fontenc to one of the T2 series of font encodings.
See also koi8.
The author is Vadim V. Zhytnikov.
License: other-free Catalogued: 2015-08-03