What am I doing wrong here? The prog works but won't find the outside prog: ld ix,progname ; ld hl,$9319 ;setup input for Zlib call detect ; jp nz, noprog ;if no prog were found return to SOS progname "WORD",0 Outside prog ~ .db "WORD",0 .db "data",0 .db "data",0 From: Chris mecad@scv.net