I'm embarrassed by posting this. I'm trying to use the function MsgPlus.CreateWnd and I can't seem to accomplish it, even following the documentation.
I have this XML file named: "InterfaceTest.xml": 
code:
<Interfaces xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <Window Id="WndTest" Version="1">        
        <Attributes>            
            <Caption>Test Window</Caption>
            </Attributes>
        
        <TitleBar>
                    <Title><Text>Hello!</Text></Title>
            </TitleBar>
        
        <Position Width="180" Height="75"/>
            <DialogTmpl/>
            <Controls>
                   <Control xsi:type="StaticControl" Id="LblTop">
                        <Position Left="10" Top="10" Width="150"/>
                        <Caption>Hello world!</Caption>
                    </Control>
                
            <Control xsi:type="ButtonControl" Id="BtnClose">
                        <Position Left="112" Top="25" Width="50"/>                
                <Caption>Close</Caption>
                    </Control>
            </Controls>
        </Window>
</Interfaces>
 
placed on the same directory as this Script 
code:
function OnEvent_Initialize(MessengerStart)
{
    var Wnd = MsgPlus.CreateWnd("InterfaceTest.xml", "WndTest");
}
 
but when the script initializes nothing happens, what's wrong? 
