Try a "R DIR". What is the exact text of the error message? (You know, the error messages are not put there for you to ignore. They do mean something to others, even if they seem cryptic to you.) I think your copy of HT-11B will be roughly equivalent to RT-11 V2 (maybe V3). No online help. You should find the big set of blue books that came with it! Many of the utility options from later versions of RT will work, but not all, and the details of a SYSGEN changed greatly between major versions. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927