I see a ZLIBWAPI.DLL involved. I thought the product is full source? What is that?

When running the demo (FullRecord and AuditPack) I see a ZLIBWAPI.DLL involved. I thought the product is full source? What is that?

ZLIBWAPI.DLL and ZLIB.DLL are two files from a well known and tested open source compression library. It is used by FullRecord to compress the stored data (so saving a lot of space in the audit file), but it is not mandatory for you to use it; and the full source for that dlls is available at internet, although they are not developed in the Clarion language. See the Notes on Audit Data Compression.