MSTAR.EXE and MSTAR.HLP make up a reader program that can be used to read Morning Star. The various issues of the Morning Star are stored in this directory. The file name is made up of YYYY-MM.ms where YYYY is the year, and MM is the month. This is the MSDOS version of Morning Star. The *.ms files can be read on other systems as well, but they do contain some control characters that are used by the reader program, so it may look odd on your screen.