Backward compatibility of WPF application created using dot net frame work 4.5

Question

Am creating a WPF application using Microsoft Dot net Frame Work 4.5 version targeting Windows 8. I wanted to make my application to be run on previous Windows OS versions like Windows xp ,Vista & Windows 7.

I think For Windows 7 it is ok . But What about Windows xp / Vista compatibility ? Will my application work with those OS?
If any idea please share.

Answer 1

You have to downgrade to .net 4.0 to support windows xp (service pack 2 and above only).

Be prepared to refactor any async or await methods.