You cannot use Windows Store specific plugins if you use Windows Store API like this http://msdn.microsoft.com/en-us/library/windows/apps/br211377.aspx in Unity Editor, so we changed a bit how Unity Editor handles them. So basically you make two versions of plugins:
Both of them must share the same name. For example, you should place Editor compatible plugin in Assets\Plugins\MyPlugin.dll, and Windows Store specific plugin in Assets\Plugins\Metro\MyPlugin.dll. When you're working in Editor Assets\Plugins\MyPlugin.dll, and when you're building to Windows Store Assets\Plugins\Metro\MyPlugin.dll will copied over.
Page last updated: 2013-05-20