RTF Script Editor control
This control is derived from an old MFC control by Juraj Rojko. It's a syntax highlighting edit control. I have fixed a few problems and enhanced it with a more Visual Basic-like editing scheme.
RTF controls will always suffer from a few short-comings when it comes to providing a really good syntax highlighting editor. Formatting speed, for instance, can be a problem with large files. But Juraj Rojko initially did a good job trying to minimize the number of display updates, so as a quick'n'dirty editor, this is a fine control.