Section 8.5: Compatibility Up Chapter 8: Help system Chapter 9: SQL Conversion 

8.6 mkmess

Note that amkmessage replaces the mkmess program used by earlier versions of Aubit 4GL. The 2 programs are incompatible. The older mkmess created binaries of a different format from the standard Informix .iem files.
 Section 8.5: Compatibility Up Chapter 8: Help system Chapter 9: SQL Conversion