I have a Raspberry Pi running a media server (minidlna) on my network, I am able to view or listen to media on my Ubuntu laptop, TV or Android device.

I'd like to be able to share the music (stream only) to a friend in USA, she has WINDOWS unfortunately.

Any ideas as to the best way to do this?

I have tried her connecting to me via VPN then using VLC to scan upnp but my R-pi doesn't show on her VLC; I thought this should work as my Draytek router is a VPN server so no computer is involved, she gets a local IP address but my server doesn't appear.