To access PPI facilities from programs other than this product, you have to construct calls to the PPI. To make a call you have to know the code for the request you are making, construct a Request Parameter Block (RPB), and specify the PPI API.
IBM's PPI uses an API module called CNMNETV to manage the data that is exchanged between programs. This product provides CNMNETM as the PPI API which has an alias of CNMNETV.