Install IDLE's .def files; these are essential for the configuration!

Also install the start script from Tools/script/idle.  (This may
change again.)

PCbuild/python20.wse

@@ -2152,6 +2152,12 @@ item: Install File
   Description=Integrated DeveLopment Environment for Python
   Flags=0000000000000010
 end
+item: Install File
+  Source=..\Lib\idlelib\*.def
+  Destination=%MAINDIR%\Lib\idlelib
+  Description=Integrated DeveLopment Environment for Python
+  Flags=0000000000000010
+end
 item: Install File
   Source=..\Lib\idlelib\Icons\*
   Destination=%MAINDIR%\Lib\idlelib\Icons
@@ -2159,7 +2165,7 @@ item: Install File
   Flags=0000000000000010
 end
 item: Install File
-  Source=..\Lib\idlelib\idle.pyw
+  Source=..\Tools\scripts\idle
   Destination=%MAINDIR%\Lib\idlelib\idle.pyw
   Description=IDLE bootstrap script
   Flags=0000000000000010