Download of JIProlog 3.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Development Tools, more precisely IDE. The default filename for the program's installer is Jext.exe. The most popular version of the program is 3.0. This free program is a product of Ugo Chirico. We recommend checking the downloaded files with any free antivirus.
From the developer:
JIProlog - Java Internet Prolog is a cross-platform pure Java 100% Prolog interpreter which integrates Prolog and Java languages in a very easy way. JIProlog allows to call Prolog predicates from Java without dealing with native code (JNI) and allows to invoke Java methods from Prolog in the same way you call predicates.
You may want to check out more software, such as Developer Express Refactor! Pro, TopLevelDemo or AbsoluteLayoutDemo, which might be related to JIProlog.