LaTeX Editor is mainly a LaTeX editor that is capable of compiling ConTeXt documents as well. It's available for Windows systems and can be downloaded from latexeditor.org. Note that it hasn't been updated since 2009.
After installation or extraction of LEd navigate to its
Batches directory and edit one of the
user*.bat files to your likings. In order to work with ConTeXt the batch file should look like this:
@echo off %3 cd %1 mtxrun.exe --autogenerate --script context --autopdf --purge %2