http://www.pnotepad.org/

Open source (BSD license) mini-IDE / text editor for MicrosoftWindows. Has the usual features plus good integration with external tools. There's a plugin that lets you write scripts in PythonLanguage.
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This is the one zero-cost editor I include in all my clients' boxes and everywhere else I go, too. Simple but powerful, this freebie is the editing tool of choice for the Wintel world.
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CategorySoftwareTool