Altova XMLSpy - The XMLSpy XML Editor is a powerful tool for editing XML and related technologies. It is the only XML Editor with patented SmartFix validation, enterprise-grade editors, converters, debuggers, and code generators.
PixBuilder - Free Photo Editing Software for PC
XML Copy Editor - XML Copy Editor is a fast, free, validating XML editor.
showFoto - ShowFoto is the standalone image editor of the digiKam project.
Liquid Studio - XML Tools Provider: XML Studio - Graphical XML Schema Editor.
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.