.Net Framework 4.5 on Windows XP

[Cixert]

I am looking for information to run .Net 4.5 on XP.
Is there any discussion post about it?
I have found the information about the Mono project, but it is impossible to run Mono 4.0 on XP
https://stackoverflow.com/questions/17499351/is-it-possible-to-run-a-net-4-5-app-on-xp