No, *shouldn't* happen. This is said about PIP in the first version of RT-11: "The /Z switch clears and initializes the directory... the form of the command is: /Z:n where n is an octal number specifying the number of extra words per directory entry." All the RT-11 utilities have always gone to great pains to be compliant with directory entries that have extra words. On the other hand, some third party software hasn't been so kind, and my experience with HT-11 has been that there are some intentional and some unintentional incompatibilities. -- 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