Sorry to dangle this off the main thread, but here is the link to various IBM systems for use under hercules. http://www.ibiblio.org/jmaynard/ He has the vm 4 pack system, the mvs 3.8 turnkey system, a DOS system and a lot of other things. Geoff. -- Geoffrey S. Mendelson, Jerusalem, Israel gsm at mendelson.com N3OWJ/4X1GM