xsd.exe and generics

[Gert]

How will I create the xsd schema for the following example.

xsd.exe test.dll /type:MyGenericListOfstring ?

[WebMethod]
public MyList<string> HelloWorld()
{
MyList<string> results = new MyList<string>();
results.Add("Hello World");
return results;
}

[XmlType("MyGenericListOf{T}")]
public class MyList<T>: List<T>
{
}