Is it possible to develop a WPF based API application for a windows form made software?
<h2>If a software is made in windows form, can it have an API application that has WPF interface?</h2>

<p>Imagine a very old Software with an API that was created before WPF was born. If I develope an add-in using WPF is there any reason that it would not run properly inside that software? </p>