That's it, I'll (try to) develop my own addin.
Thanks to the forum, I manage to install Visual studio, the api dsk, and the project templates both for C# and VB.NET. (ho yeah!)
But what is the best language to go for, from a SolidWorks point of view ?
Is there some limitation of a language on an other (on some SolidWorks features for example) ? Maybe both are equally powerful so it's just a personal choice.
I only know vba and python, so I'll have to learn a new language (even if vb.net looks like vba) and I want to choose the best one, even if I need to learn C#.
Thank for your feedback.