In the xUSSR countries 1C Enterprise rules completely. Most needs of a typical small business can be automated almost completely. And it's also fairly easy to extend for specific purposes - a trained 1C developer can add typical business-related functionality as fast as you can make a spec.
Now, it's not ideal of course. The IDE in 1C is atrocious, its internal language is dumb, it's hard to scale 1C applications, etc. But the core ideas in its design are pretty good.