For tools such as the HL7 Listener and Iguana, it's just a matter of loading the VMD file that you have created or edited with the defined MSH and MSA settings.

Invoking this logic programmatically from C++, Java and other languages is also easy. For syntax examples showing how each language invokes automatic acknowledgment, make sure you install version 3.211 of Chameleon and above. The complete project generation for Chameleon 3.211 is implemented using automatic acknowledgment for each language.

For batch testing of automatic acknowledgment you should also take a look at the msgtransform tool, which allows you to easily test out your auto-acknowledgment logic.