Xmlspy
AltovaXML v.2008
AltovaXML 2008 is a FREE XML standards processor that includes the Altova XSLT 1.0 and schema-aware XSLT 2.0 engine, XQuery 1.0 engine, and XML validating parser.
XPontus XML Editor v.1.0.0.2
XPontus XML Editor is a simple XML Editor oriented towards text editing.
COMPASS v.2 83
Compass has been a popular and powerful bookmark manager program since its first release in January, 1997. It supports three most popular browsers - Netscape, Internet Explorer, and Opera. Plus, it can launch any system specified generic browsers.