Single click to select and expand

[Krygim]

In the Vista file explorer, clicking on the triangle at the left of a folder
name will only expand the node. In order to both select and expand the
folder, we need to double-click on the folder name. Is it possible to change
it to a single click for "select+expand" (similar to Windows XP)?

 

[Max]

Same as in XP:
Control Panel/Folder Options/General Tab/Single Click...