iTunes installer doesn't launch

I am not sure where to ask — there's no forum thread «iTunes for GNU/Linux» — so I ask here, because it seems to be the most suited.

I'm running iTunes with Wine-1.9.2, and iTunes says «This iTunes installer requires Windows 7 64-bit edition or later». But I am tried Windows7 emulation, and even Windows 8 — all the time I'm getting the same error. What am I supposed to do?

Sorry, I don't know whether there're logs, or something to add to the post, but feel free to ask ones.