a Windows application that allows you to look at the messages being sent in the system. When developing your own applications you can see the messages and you can inspect them
a free source code editor which supports several programming languages running under the MS Windows environment. based on Scintilla edit component (a very powerful editor component)
a development tool to help programmers adheres to a coding standard. It automates the process of checking code to spare humans of this boring (but important) task.
Win32-versions of GNU tools, or tools with a similar open source licence. The ports are native ports, that is they rely only on libraries provided with any 32-bits MS-Windows operating system, such as MS-Windows 95 / 98 / 2000 / NT / XP