CSHTMLDiff Control 

CSHTMLDiff Control is a powerful ActiveX control which allows you to compare two revisions of a file visually in a quick, easy and friendly way. CSHTMLDiff utilizes a robust engine that recognizes various file types, including Text, XML and HTML.
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CS-ExcelDiff 

ComponentSoftware ExcelDiff (CS-ExcelDiff) is an advanced Excel document comparison tool for Microsoft Windows which analyzes & presents differences in Excel documents containing either single or multiple sheets.
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CSDiff 

ComponentSoftware Diff (CSDiff) is a free, advanced file-difference analysis tool for Microsoft Windows.
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WebAsyst Workflow Management Software 

Web-based Workflow Management Software designed for workgroups to keep track of issues (work orders, bugs) from creating to resolution. Customizable workflow. Gantt Charts. Multilingual. Browser and Windows client. Hosting (30-day free) or sources.
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