WYSIWIG conditional compilation preprocessor for Java etc.
...It is sometimes difficult to determine which lines of code are active and which are not. Being WYSIWYG, the PreprocessorWizard multi-language WYSIWIG preprocessor resolves the problem of code being difficult to read and allows one preprocessing syntax for all languages. It is easy to use as a standalone application and it can be easily integrated with almost any IDE.
PLiX (Programming Language in XML) is an XML-based code-generation framework. Generators produce XML matching the PLiX.xsd schema, which can be formatted into multiple languages. Extensible formatters support C# and VB.NET in Visual Studio 2005 and 2008