comctl32: Create tooltip windows with WS_POPUP style.
diff --git a/dlls/comctl32/commctrl.c b/dlls/comctl32/commctrl.c
index 2925cc2..2f08f75 100644
--- a/dlls/comctl32/commctrl.c
+++ b/dlls/comctl32/commctrl.c
@@ -1336,7 +1336,7 @@
 {
     HWND hwndToolTip;
 
-    hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, 0,
+    hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
 				  CW_USEDEFAULT, CW_USEDEFAULT,
 				  CW_USEDEFAULT, CW_USEDEFAULT, hwndOwner,
 				  0, 0, 0);