[lnternet]

Heh, I always thought of Win16 as the Windows 3.x API. It never occurred to me that the "same" API was used for Windows 2.x and even 1.x. Makes sense though...

Really cool to see that Windows 1.0 application run on Windows 10!

[pavlov]

With some minor (but annoying) changes, it was also the OS/2 Presentation Manager API.