plugin xml setting

<?xml version=“1.0” encoding=“utf-8” ?>

<PlugIn-Metadata

          xmlns="urn:plug-in-bundle-plugin.addin-2.0"
          Name="Plugin2"
          Copyright="LYACH"
          Url=""
          Description="RBIM.VisualizationViewModule"
          Enabled="true"
          Immediate="true"
          Path="Plugins\Plugin2\">
<Runtime>
  <Import assembly="Plugins\Plugin2\bin\Plugin2.dll" isweb="false"/>
</Runtime>

</PlugIn-Metadata>

plugin class setting

[Serializable]
[AddIn("Activator2")]
public class Activator2 : AddInBase
{
    public override void Start(IBundleContext context)
    {
        Console.WriteLine("Plugin2 is Starting!!!!");

        IUserInfo userinfo = new UserInfo();
        userinfo.GetUserName();
        userinfo.userName = "Admin";

        context.RegisterService(typeof(IUserInfo), userinfo, user);
        context.RegisterService(typeof (Form), new Form1(), null);  
        IUserInfo _userinfo = (IUserInfo)context.GetRegisterService(typeof(IUserInfo));
        if (_userinfo != null)
        {
            foreach (string str in _userinfo.GetUserName())
            {
                Console.WriteLine(str);
            }
        }
     var ufbio=   context.GetRegisterService(typeof(UserInfo));
    }

    public override void Stop(IBundleContext context)
    {
        Console.WriteLine("Plugin2 is Stoped!!!");
    }
}