Zortech C++ was the first C++ compiler available for PCs. I bought it even though I had a Mac, and ran it in emulation, to learn C++. Apple had their AT&T Cfront-based MPW C++ compiler about half a year later I think.

Then Symantec acquired Zortech, and totally destroyed the compiler in version 6, immediately driving everyone to the new Metrowerks just as PowerPC came out.