1)   NTest 1.0
An automated unit testing tool for .NET that generates test scenarios automatically with random input values and runs them to test the robustness of your program.

 2)   AdventNet QEngine WebTest 5.4
AdventNet QEngine WebTest - An extensive, platform independent Web testing tools used for Web Functionality testing and Web Performance testing of Web applications developed using HTML, JSP, ASP, .NET, PHP, JavaScript/VBScript, e-commerce, etc.,

 3)   vTest 2.0
vTest is an automated functional and regression testing tool for web applications. It incorporates record, verify, playback and reporting capabilities. vTest supports both Microsoft Internet Explorer and Mozilla Firefox.