# CALLING NATURAL FROM 3GL PROGRAMS **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Natural, Natural-News-and-General-Topics, Natural-on-Windows-Unix\ **Created:** [January 17, 2006, 10:29pm UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440 "2006-01-17T22:29:21Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![jvilefort](https://avatars.discourse-cdn.com/v4/letter/j/c89c15/32.png) [@jvilefort](https://techcommunity.softwareag.com/u/jvilefort)\ **Post date:** [January 17, 2006, 10:29pm UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440/1 "2006-01-17T22:29:21Z")
Can I call a Natural object(program, subprogram) from a COBOL, PL/1 or ASSEMBLER program ? If yes, how can I do ? ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [January 18, 2006, 1:47am UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440/2 "2006-01-18T01:47:24Z")
Basically there are three options: 1. Remote Procedure Call (RPC), see [http://developer.softwareag.com/ets/docu/natural/Nat414mf/print/rpc.pdf](http://developer.softwareag.com/ets/docu/natural/Nat414mf/print/rpc.pdf) 2. Invoking NATURAL directly, which means starting the NATURAL “runtime” with every invocation (expensive) 3. Using the 3GL Callnat interface ( see “Natural 3GL CALLNAT Interface” in [http://developer.softwareag.com/ets/docu/natural/Nat414mf/print/ops\_mf.pdf](http://developer.softwareag.com/ets/docu/natural/Nat414mf/print/ops_mf.pdf) ). ---
**Author:** ![BenedictXVII](https://avatars.discourse-cdn.com/v4/letter/b/50afbb/32.png) [@BenedictXVII](https://techcommunity.softwareag.com/u/BenedictXVII)\ **Post date:** [January 18, 2006, 4:18pm UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440/3 "2006-01-18T16:18:24Z")
> [@jvilefort](#): > > Can I call a Natural object(program, subprogram) from a COBOL, PL/1 or ASSEMBLER program ? > If yes, how can I do ? 1. On Windows and UNIX: Using the Natural Native Interface ([http://developer.softwareag.com/ets/docu/natural/Nat611win/print/pg.pdf](http://developer.softwareag.com/ets/docu/natural/Nat611win/print/pg.pdf) p. 565 ff.). Regards, +o:-] ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [January 18, 2006, 4:55pm UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440/4 "2006-01-18T16:55:32Z")
Right, but from “COBOL, PL/1 or ASSEMBLER” I concluded we are talking about options available on the mainframe, so I listed just those 😉 ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 2:40pm UTC](https://techcommunity.softwareag.com/t/calling-natural-from-3gl-programs/60440/5 "2021-04-02T14:40:24Z")