High Level Language Application Programming Interface (HLLAPI) is a standard to access existing information and applications that are housed on IBM and Unisys mainframes, AS/400, …

High Level Language Application Programming Interface, commonly referred to as HLLAPI, is an industry standard method for a Windows application to interface with a host system using a …

A Future for Your HLLAPI/WinHLLAPI Applications and Macros? With the Inventu Viewer+ server-side support for the HLLAPI interface, you can move to a better architecture (Inventu Viewer+ …

Microsoft Corporation The specification was developed by the companies listed it is publicly available and is not confidential, the Additional copies of the specification can be obtained …

Dec 19, 2025 · That tinny little thing Let’s tell the story of HLLAPI—the “ghost in the machine” that quietly automated the mainframe world. The Prelude: The Walled Garden Our story begins in …

HLLAPI Overview HLLAPI is an acronym for High Level Language Application Program Interface. HLLAPI was developed so that external programs can be written to interact with a host …

Conklin SystemsLLAPI and it's variants (WinHLLAPI/EHLLAPI/IHLLAPI) are the de facto standard for programmatic access to terminal sessions through terminal emulators across many …

HLLAPI Overview HLLAPI (High Level Language Application Programming Interface) is an industry standard method for a Windows PC application to interface with a host using a …

Procedure Configure the short name or long name of the host session. Determine and configure the short name and long name of the host session on the legacy application. A short name is a …

Communication Setup>HLLAPI HLLAPI is the High Level Language Application Programming Interface that allows external programs to communicate with host computers using a TN3270, …