Copyrights, Licensing
A result of the complex history is that the copyright and licensing situation is unclear. A typical recent VSE development environment is made up of many elements many of which were developed by third parties and sold separately but are now included with the distribution.
The situation with the most recent release (VSE 2000) is:
| Element | Copyright Holder | License |
|---|---|---|
| Virtual machine | Seagull | Seagull owns VSE. Cincom has the right to sell it and provide support. |
| Base Classes | Unknown | Unknown |
| ObjectShare Classes | Cincom | Includes WindowBuilder, various WidgetKits, GF/ST, etc. As such, Cincom can (almost?) do anything it wants with those products (keeping mind the OEM DLL issues affecting two of the WidgetKits). |
| Profile/V | Kent Beck | Open Source, under the CPL 1.0 license (Though donations are appreciated). A performance profiler. Not actually part of the VSE distribution. |
Read more about this topic: Visual Smalltalk Enterprise
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