I scrounged a copy of the RTE OS for the hp21xx computers, but it is in some strage archive format with the extension ".fst" -- this is apparently much like tar, but my sun version of tar doesn't uunpack it well (to say the least :-)... Does anyone know of either a version of the archive program for this format that I could build on a UNIX box, or the format of the file so that I could unpack it? Thanks much, Bill McDermith