Visual Prolog 7.4 Release

Utilize the full power of 64 bit windows.

Use the Internet Explorer webBrowserControl.

Shine-up your applications with the ribbonControl.

Bring the Scintilla editor control sciLexer into your program.

Simplify exception raising using programPoints.

Download and try the Personal Edition right now.

Or why not simply buy the Commercial Edition € 300.

Upgrade from Visual Prolog 7.3 only € 130.

Visual Prolog

Visual Prolog is a multi paradigm programming language based on the logical language Prolog. The goal of Visual Prolog is to facilitate programmatic solutions of complex knowledge emphasized problems.

Visual Prolog is a powerful and type safe high level programming language combining the very best features of logical, functional and object-oriented programming paradigms in a consistent and elegant way.

With Visual Prolog you can build applications for the Microsoft Windows 32/64 platforms. It supports advanced client-server and three-tier solutions. Visual Prolog is especially well suited for dealing with complex knowledge.

By utilizing the powerful object system you are able to architect your application very rigidly and at the same time benefiting from very loose coupling. This will enable you to reduce development and even more maintenance cost.

Visual Prolog features:

logical programming concepts (backtracking, pattern matching)
algebraic data types
a unique object system
multi-threading (supported in the Commercial Edition)
parametric polymorphism
Unicode support
automatic memory management (garbage collection)
much more

Visual Prolog is a complete programming environment with:

Video Tutorials

Hello World! provides overview of basic IDE functionality.

Watch other video tutorials.

Visual Prolog Editions

Commercial Edition for commercial projects. Price: € 300.
Personal Edition for non-commercial personal usage.
Free without any time, session, or other limitations.

Visual Prolog Projects that Inspire

With Visual Prolog you can build industrial strength commercial applications. Visual Prolog is especially well suited for dealing with complex knowledge.

Prolog Development Center has proven this in the advanced resource scheduling and decision support systems written entirely in Visual Prolog for:

We have 25 years of experience in this field. Our systems based on Visual Prolog are used in many countries and companies.

For example:

Score is used in more than 120 airports of 25 countries. It coordinates approximately 10 million arrivals and take-offs a year.
FleetWatch is used in 21 international airlines.
More than 250.000 persons duty plans are made using PDC-StaffPlan.