HM NIS Edit is the best Editor/IDE for Nullsoft Scriptable Install System (NSIS). Its useful for experts and beginner in the creation of Setup programs with the NSIS.
ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K/XP/Vista/7. It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction through a graphical user interface
TKproE is a development environment for the production of software applications written in the TCL/TK scripting language. In short, TKproE is a Graphical User Interface (GUI) for building TCL/TK programs. TKproE is, itself, written in TCL/TK.
Embedded Font Generator (EFGen) is a generator of a cross-platform ANSI C code that renders a text using OpenGL. Generated code includes everything you need to render a custom text, also it is easy to compile and link with your application.
SQLpp, A n-Tier generator in C++: generates complex SQL queries, C# wrappers for multiple database
FireGUI is a cross platform gui design tool.write by wxWidgets lib. generate code with wxWidgets,MFC,fox,and so on.
Text preprocessor that provides script based in-code code generation. It can be used to provide templates for languages that doesn't support them (C, Pascal). Of course, it is stronger than templates in C++ so you can find it useful with other languages