A rather niche product named Microsoft Test was released back in the early 1990s, with Version 3.0a being the last of it in 1994.
Finding information about this piece of software is not easy these days, and you are more likely to find Microsoft Certification tests instead searching on Google. Basically it’s a development tool using TestBasic, a scripting language with similarities to Visual Basic. Offered mainly to software publishers, I actually hadn’t been aware of this product until the last year or so.
The point of the software was to automate keystrokes and mouse clicks to validate the results as part of regression testing. Regression testing was a method so that when additional development was made, existing software functionality was working as it should without causing potentially new unexpected bugs. This becomes more important when developing more complex software to ensure a certain level of quality control.
A developer would have this installed along side Visual Basic, Visual C++, or whatever their desired language had been.