>>I have mentioned how extensive WinDev is as an integrated development environment. I have also mentioned the extensive help documentation. What WinDev also has is a very large collection of examples (with code), working components, tutorials and so forth. For example, the attached screenshot shows complete training examples for numerous specific topics such as using bar-codes, data encryption, using flowcharts, working with PDF files, tree views, and much more. Glance over this and see how extensive it is. These are just the training examples; there are also complete examples, components and other learning aids. Each comes with the code in a working solution which you can inspect, copy, modify, and include in your own projects directly.
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>>Let me know if you like to see screenshots of the other examples.
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>I have a question. Is it posible to write data to a free dbf file ?

Yes, read and write. Using native mode (directly from within WinDev using it's own driver) or OLEBD driver. You have to use OLEDB for tables with memo fields but the code is 99% the same, only one line is different. Very fast.