On 15/01/2013 16:11, Brian Hechinger wrote: What am I missing here? My VMS is way too rusty. $ unzip :== $dka0:[bin]unzip_axp.exe $ unzip %DCL-W-IVVERB, unrecognized command verb - check validity and spelling \DKA0\ $ dir Directory DKA0:[BIN] UNZIP_AXP.EXE;1 VIM-73-AXP.ZIP;1 Total of 2 files. $ -brian Works OK for me: [MSW]SLAVE$ unzip :== $dka0:[bin]unzip_axp.exe [MSW]SLAVE$ show sym unzip UNZIP == "$DKA0:[BIN]UNZIP_AXP.EXE" [MSW]SLAVE$ You don't have a logical name defined for any part of that do you? For example BIN? I once had an issue because I'd defined a drive name logical as DATA which was then being translated. I think that's why using a dollar sign after logical name definitions is good practice for things like drive designators. Mark.