Hi Mario,
Sorry for the delay in getting back to you.We were creating a sample for you.
You may draw unscaled images in nodes.For that you need to use Ownerdraw mechanism of TreeViewAdv.
1-Set the Property TreeViewAdv.OwnerDrawNodes=true;
2-Handle the event AfterNodePaint and draw the images directly using the Graphics object.
I have attached a sample for your reference.Please go through that and let me know ,if you need more assistance.
Regards,
Joy
Treeview_unscaled.zip