XExternalEditor

Or you can choose a project from the list below. All my open source projects are listed there.

If you do not wan't to do anything from above, you can at least go to the main-page.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Download - Edit - Upload...

This editor loads the ini file given by a MediaWiki's external edit link. It then starts the default application registered for the document which is defined inside the ini file. After editing the document you can preview the changes to the MediaWiki and/or upload the final version.

Here are some screenshots.

Get it from https://sourceforge.net/projects/xexternaleditor/

You can find all information regarding the development on the sourceforge site.