As you may or may not know, Windows Media Player has the ability to share media files over the network, enabling other people to play your music and videos in their own Media Player application. This is pretty similar to what iTunes does as well.

Windows Media Player library sharing

Windows Media Player library sharing

If you want to share files that are not located locally on your machine, you are in for a surprise. For some reason, Microsoft has chosen to prevent you from sharing content located on network locations (UNC paths) like \\MACHINENAME\sharename

There is a way to unlock this however, using the following hidden registry setting.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MediaPlayer\Preferences\HME]
“EnableRemoteContentSharing”=dword:00000001

To make it easier for you to add this feature, I’ve made two registry files to simply run to enable or disable the feature.

Download:

UNC_WMPsharing_disable
UNC_WMPsharing_enable