Can a WinForm application be started from a WPF application or vice versa?

I have one WinForm application that runs fine (now) but most of the others on the project we wish to use WPF instead.

Can a button on a WinForm activate a published WPF application (the whole solution not just a page) to show on a popup.

That or the reverse, can a WPF do this and execute a published WinForm.

Thanks.