Old-Russian Ispell is a superset of A.I. Lebedev's rus-ispell package that enables spellchecking of texts in old Russian orthography (pre-1918). The KOI8-C encoding is used for representing old Russian characters.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.