do you know that? use chrysalys and change the installer for 3.18 or for use rexxsyslib copy muirexx in c or by easy intaller in user starup ;BEGIN ARexx assign >NIL: MUIRexx: c: If Exists mossys:libs/rexxsyslib.library rename Mossys:Libs/rexxsyslib.library Mossys:Libs/rexxsyslib.library_disabled EndIf ;END ARexx