OpenSim-Test/bin/OpenSim.addin.xml

<Addin id="OpenSim" isroot="true" version="0.5">
    <Runtime>
        <Import assembly="OpenSim.exe"/>
        <Import assembly="OpenSim.Framework.dll"/>
    </Runtime>
    <ExtensionPoint path = "/OpenSim/Startup">
        <ExtensionNode name="Plugin" type="OpenSim.Framework.PluginExtensionNode" objectType="OpenSim.IApplicationPlugin"/>
    </ExtensionPoint>
</Addin>