I have download Rhino Preview image and install it 
But seems I have missed something else nothing particular is viewing :(
 
The toto file is a "toto.3dm" created with moi 
is that the same for you? (I have not rhino)  
"View 3dm file thumbnail images in Windows Explorer - even without Rhino" 
Does exist something special to config?
   
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Pilou 
Is beautiful that please without concept!
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