// The vista tree control includes some new code that originally broke the
// multi-selection tree, causing seemingly spurious item selection state changes
// during Shift or Ctrl-click item selection. (To witness the original broken
-// behavior, simply make IsLocked() below always return false). This problem was
+// behaviour, simply make IsLocked() below always return false). This problem was
// solved by using the following class to 'unlock' an item's selection state.
class TreeItemUnlocker
// the wrong items are deselected.
// Fortunately, Vista provides a new notification, TVN_ITEMCHANGING
- // that can be used to regulate this incorrect behavior. The
+ // that can be used to regulate this incorrect behaviour. The
// following messages will allow only the unlocked item's selection
// state to change