What a coincidence - so did I. At one point in time I could program with it backwards in my sleep <s>.

Remember the version prior to QB 4? It was released earlier in 87 and had a ton of breaking changes.

But QB4 was an outstanding product. The late 1980's had a line of outstanding DOS development products...

QB 4
FoxPro 1.0
Turbo C 1.0 (what a wonderful product that was)
CodeBase
(to name a few)