Windows explorer preview player won't work

I wanted to say thanks for this and also tell you about an issue I ran into, as well as ask a question. First, I noticed that when I set Virtualmidisynth as my default midi device it works on everything I've tried except the preview player built into windows explorer. You know, the one in the preview pane - midi files must be associated with windows media player for this to show up. And my question: I noticed you have a load order for soundfonts. Does this mean that, say, if you have 2 soundfonts and an instrument in the last soundfont in your list is not included but it is in the first soundfont in your list, Virtualmidisynth will use the instrument from the first soundfont on your list? So you'll be using instruments from multiple soundfonts at a time? Or do soundfonts just not work like that? It'd be cool if you could mix and match soundfonts by rearranging your load order. Thanks again