XMLFox Advance XML/XSD Editor
Graphical XML editing and validation tool XMLFox Advance is XML/XSD editor for creating valid well-formed XML documents and/or XSD Schema. XMLFox Advance XML/XSD editor is the Windows based graphical tool for authoring, updating, exploring, well-formedness checking or validating XML documents. ... It features full XSD validation, but doesn't require a XSD (XML Schema Definition). ... XMLFox Advance is the tool for beginners to XSD schema (XML Schema Definition) as well as for professionals. ... XMLFox Advance Editor is a delimiter-aware XML data editor with markup-aware cut-and-paste...
http://www.rustemsoft.com/XMLFoxAdvance.zip - 0b - Download - Screenshot

XMLInspector
XMLInspector helps developers to quickly and lightly create stable applications with human-engineered and understandable interface. The developers may concentrate on complex object modelling as XSD schemes whereas XMLInspector automatically enables them to edit the objects in a hierarchic... XMLInspector generates XSD schemes for records of any TDataSet descendants, thus helping to quickly create database record editing dialogs. ... XMLInspector automatically creates dialogs and object editing forms based on XSD schemes, and enables developers to edit object properties.
http://www.devrace.com/files/xmlins_1_2_d7.zip - 3Mb - Download - Screenshot

XMLwriter XML Editor
XMLwriter is a powerful XML editor for Windows designed to help web editors and programmers take advantage of the latest XML and XML-related technologies such as XSLT and XSD Schema. XMLwriter provides users with an extensive range of XML functionality such as: validation of XML documents... Naturally the user interface is fully customizable to fit the way you like to work, and comprehensive on-line help including an XML syntax guide are included. ... Intelligent entry helpers guide you as you create documents and customizable code snippets are available for often used text.
http://XMLwriter.net/download/XMLwriter26.zip - 4Mb - Download - Screenshot

Document! X
Developing accurate documentation, particularly for complex components or XSD schemas, has traditionally been a time consuming, costly and skills intensive task. Documentation during development can be seen as a moving target and at the end of a project developers are often immediately... X can use comments from Transact-SQL code, SQL Server extended attributes, XSD Schema annotations and Type Library HelpStrings. ... NET and C# source code comments directly within a preview of how the generated documentation will look.
http://www.innovasys.com/download/trialversions.asp?cpid=dx5pad - 16Mb - Download - Screenshot

Aioob XML Database Converter and Aioob XML Editor
The Aioob XML Database Converter. Convert almost any data into XML, in a single click. The conversion requires 3 easy steps: Step 1 - Open or edit your data, in spreadsheet format. Step 2 - Define XML layout. Step 3 - Generate XML Document. As well as converting your data, the Aioob XML Database... Edit XSL, XML, XSD, XSLT and FO documents with ease. ... Edit XSL, XML, XSD, XSLT and FO documents. ... The Editor makes code writing and reading much clearer and readable than writing or reading code written by hand.
http://www.aioob.com/xmlpage/download/SetupAioob1_0_0.exe - 16Mb - Download - Screenshot

Enterprise Architect for UML 2.0
Enterprise Architect is a flexible, complete and powerful UML2. 0 modeling tool for Windows platforms. It is an object oriented CASE tool providing the competitive edge for system development, project management and business analysis. Enterprise Architect is a comprehensive, full lifecycle, UML... NET, Java, Visual Basic 6, Python, PHP, XSD, WSDL and more. ... A leading modeling platform, Enterprise Architect has a strong user base in over 60 countries worldwide. ... Enterprise Architect is used for the development of various kinds of software systems for a wide range of industries,...
http://www.sparxsystems.com.au/bin/easetup.exe - 16Mb - Download - Screenshot

oXygen XML Editor and XSLT Debugger
Oxygen is a multi-platform XML Editor, XSLT/XQuery Debugger and Profiler with full Unicode support. It offers a powerful code insight that can follow a DTD, Relax NG or an XML Schema or even can learn the structure from a partial edited document. XML and XSL documents can be easily associated... Oxygen validates XML, XSL, XQUERY, FO, XSD, RNG, RNC,NRL, DTD, Schematron, WSDL and CSS content, reporting errors with description and line number information and marking them in the document when validate as you type is enabled.
http://www.oxygenxml.com/InstData/Windows/NoVM/oxygen.exe - 16Mb - Download - Screenshot