Macro Scipting Language (MSL) is a light weight perl-like scripting language that is intended to be added to existing or new applications to provide macro support. It can also run standalone as well. The syntax is very close to perl and c.
ACDK - Artefaktur Component Development Kit - is a platform independent C++-framework similar to Java or C#/.NET for generating distributed and scriptable components and applications.
Includes Mogno Lib for web applications development and Mogno Studio, an environment to visually build the application. Mogno Lib and Mogno Studio are a Java implementation of Perl Oak (http://perl-oak.sf.net) and Perl Oak\'s Forest Web App Builder.
Lintel is the support package for many other HPL packages. It includes library code and utilities that are used in multiple other packages, and are not big/cohesive enough to be treated as a separate package.