It was a quite advanced BASIC and featured a runtime threaded codecompiler that compiled the program when one entered the RUN command. The dialect was very close to MSX BASIC, the major differences were the lack of the PLAY, SOUND, VPOKE and PUT SPRITE operators, impossibility to open several files at the same time and impossibility to use several operators in one line. It also lacked full-screen editor. Machine-dependent features, like graphics operators parameters and PEEK/POKE addresses were also different. The software takes its name from Vilnius, the capital city of Lithuania, formerly a republic of the Soviet Union.
