*Correct title without ¿ is: How to obtain source code from closed company’s privative programs?
I can't change it once published. Same forum topic in Spanish: https://trisquel.info/es/forum/%C2%BFc%C3%B3mo-conseguir-el-c%C3%B3digo-fuente-de-los-programas-privativos-de-una-empresa-que-cerr%C3%B3#comment-115249
