DO.FXO DO.FXO is an AlphaFIX overlay. When DO.FXO is copied into your LIB: (DSK0:[7,0]) account, FIX recognizes a new command: >DO. DO executes as an AMOS command the remainder of the command line. So, for example, the command >DO SYSTAT Performs a SYSTAT, and then returns to the AlphaFIX command prompt. Since almost any command can be executed, your imagination is the only limitation on what DO can do for you. DO was donated to AMUS for non-commercial use by UltraSoft Corporation, 367 Wildwood Road, Ronkonkoma, New York 11779. 516-293-3737. Send inquiries to ULTR/AM via E-mail. .