C++, lost with 3.0, was regained. As 4.0r was being released, Rational Software Corporation negotiated its purchase from Microsoft in 1996. Version 6 (5 was skipped) from Rational incorporated support Microsoft Active Accessibility (MSAA), support for HTML and Web pages and ability to read and change the Windows Registry. Version 6 provided support for Windows 98 and NT 5.0, which eventually became Windows 2000. Mainsoft Corporation created a ported version called MainWin Visual Test 4.0r for Unix. This version is for testing Unix applications created from Windows applications using Mainsoft MainWin platform. Rational Visual Test 6 was also sold as part of Rational DevelopmentStudio bundle. Visual Test was integrated with other Rational products: Purify, and Quantify, PureCoverage and ClearCase. Rational remained committed to fully support Visual Test through 2002. The last version shipped was 6.5. As of 2006, 103 tech notes that were provided as part of the support from Rational remained available from IBM, which previously acquired Rational (Search results). Notes References Visual Test 6.0 Bible, Thomas Arnold II of ST Labs and Microsoft () Executing visual test scripts with IBM Rational TestManager () Automating Windows Forms () MSDN Blogs : Brian McMaster's Blog on QA, .NET, and VS – January 2006() MSDN Blogs : Steve Rowe's Blog – Hiring Great Testers – Tester Roles – January 2007() The value of Manual testing (or…The value of Automated testing) – September 2008 () Richard Wartner Visual Test programming section () Visual Test P-code and usage () Discontinued Microsoft development tools Graphical user interface testing 1992 software