[mickduprez]

I love Smalltalk but apart from the commercial versions, the UI frameworks are very limited or immature and have very few examples or doc's. Yes, you can build your own 'morphs' etc but that doesn't scale well for anything but one off small/toy applications.

Pharo is probably the best placed open source Smalltalk to get into the enterprise dev market and has a promising UI framework under dev at the moment but until this gets sorted out I think it will remain on the sidelines for a while yet.

[pjmlp]

Commercial Smalltalks for Windows are as flexible as Win32.

http://www.cincomsmalltalk.com/main/

This was the path they were on when Java happened.

[badsectoracula]

There is also Dolphin Smalltalk[0] which is an open source Smalltalk with native Win32 UI support.

[0] https://github.com/dolphinsmalltalk

[pjmlp]

Yes that was another one.

I was using Smalltalk/V for Windows 3.x back in the day, as part of some university project assignments.