1)   CSDiff 5.0
ComponentSoftware Diff (CSDiff) is a free, advanced file-difference analysis tool for Microsoft Windows.
visual compare, visual difference analysis, MS-Word difference analysis, version control, revision control system, software configuration management, programming tools, inexpensive case tool, source change control, program problem tracking,

 2)   CS-CVS 4.0.112
CS-CVS is a CVS client for Windows aimed at both the professional as well as the novice user. With CS-CVS, the complicated setup and resource demanding maintenance of classical CVS clients is virtually gone.
cvs, cvs client, version control, revision control system, software configuration management, programming tools, inexpensive case tool, source change control, program problem tracking, workflow,

 3)   CS-HTMLDiff 2.1.146
ComponentSoftware HTMLDiff (CS-HTMLDiff) is an advanced file-difference analysis tool for Microsoft Windows which analyzes & presents differences in HTML, XML, MS-Word and text documents.
file comparison, compare html files, visual compare, version control, revision control system, software configuration management, programming tools, inexpensive case tool, source change control, program problem tracking,

 4)   CS-ExcelDiff 2.1
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.
version control, revision control system, software configuration management, programming tools, inexpensive case tool, source change control, program problem tracking, excel, microsoft excel, microsoft office,

 5)   CS-RCS Pro 4.0.273
Professional version control and software configuration management for Windows. Fully integrated with Windows Explorer and provides the most powerful and intuitive solution on the market today. Free for single users and open-source developers.
version control, revision control system, software configuration management, programming tools, inexpensive case tool, source change control, program problem tracking, workflow, workflow management, cvs,