diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index c6a84db..433bd28 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -2124,8 +2124,16 @@
 
     import Tkinter
     try:
-        gui = GUI(Tkinter.Tk())
-        Tkinter.mainloop()
+        root = Tkinter.Tk()
+        # Tk will crash if pythonw.exe has an XP .manifest
+        # file and the root has is not destroyed explicitly.
+        # If the problem is ever fixed in Tk, the explicit
+        # destroy can go.
+        try:
+            gui = GUI(root)
+            root.mainloop()
+        finally:
+            root.destroy()
     except KeyboardInterrupt:
         pass