Thanks.
We looked at blender, and it seems impressive, but i am not sure if it does what he wants to do (creating videoclips). Besides that it seem anything but intuitive.
I ran into two further results:
VideoDub and WindowsMovieMaker
I installed avidemux in Virtualbox (which has it's own problems).
I clicked on "File -> open" and avidemux told me it couldn't open a *jpg file.
(That is what he wants to do too: insert images and add some music. But also editing existing clicks. Assuming i understood it correct: I never do any multimedia, he doesn't speak my native language, i don't speak his, and we use different operating systems. Communication is a bit awkward).
Perhaps an example is more clear. Stuff like this:
https://www.youtube.com/watch?v=_r2P_t9-pxs(to me that is not exactly an video).
Ignoring the content: something like that is possible with avidemux?