xChecker is a little application I wrote with Delphi a couple of years ago. I was developing ASP sites that made extensive use of XML & XSL, and wanted a little utility for quickly checking whether XML was well-formed.
NOTE: This uses requires that Microsoft's XML parser be installed (which you probably already have if you have Internet Explorer 4.0 or greater).
A free copy of Python to anyone who can bring up the "About" window!
Python License
Please feel free to contact me with comments, questions, or suggestions at oliver@rutherfurd.net. I should say that I don't even use this app anymore, so unless there's a good reason for me to change something, I probably won't. However, since the source is available, you may do as you please!