Prior to Visual C++ (the first version of which shipped for Windows 3.x), Microsoft sold a “Microsoft C/C++” as well as Microsoft QuickC:
https://herbsutter.com/2012/05/03/reader-qa-what-about-vc-an...
There was a change of heart a few years later, but the wind seems to have stopped after all the security discussions,
https://devblogs.microsoft.com/cppblog/c11-and-c17-standard-...