Hello, Has anyone tried to use the mscomm library with autolisp? This is what I got until now: (defun loadmscomm () (vlax-import-type-library :tlb-filename "c:\winnt\system32\MSCOMM32.OCX" :methods-prefix "comm-" :properties-prefix "comp-" :constants-prefix "comc-") ) (defun initcom () (setq com1 (vlax-create-object "MSCommLib.MSComm")) ;; use com1 (comp-put-commport com1 "1") ;; 9600 baud, no parity, 8 data, and 1 stop bit (comp-put-settings com1 "9600,N,8,1") ) This is the part that will not work: (vlax-create-object "MSCommLib.MSComm") Is the string wrong? Do I need to have VB installed on the pc? The application I would like to implement is to couple a GPS-receiver to AutoCAD, now using 2004 MAP and LDT. Thanks, Bruno