Thanks Sitten

here is what I did:
vb.net Code:
  1. Dim f As New Font("Microsoft Sans Serif", 8, FontStyle.Underline)
  2. Dim f2 As New Font(f, FontStyle.Bold)
  3. tvCatalog.Nodes(0).Nodes(intNodeId).Nodes(intNode2).Nodes(intProjectNode).Nodes(intProjParmNode).Nodes(intlocalNode).Nodes.Add("SetEV", "Set From Enviorment Variable: " & drProjParams.GetString(7), 1)
  4. tvCatalog.Nodes(0).Nodes(intNodeId).Nodes(intNode2).Nodes(intProjectNode).Nodes(intProjParmNode).Nodes(intlocalNode).Nodes(intlocalNode).BackColor = Color.PaleTurquoise
  5. tvCatalog.Nodes(0).Nodes(intNodeId).Nodes(intNode2).Nodes(intProjectNode).Nodes(intProjParmNode).Nodes(intlocalNode).Nodes(intlocalNode).NodeFont = f2