diff -r c40b573c9f7a PCbuild/build_tkinter.py
--- a/PCbuild/build_tkinter.py	Sun Nov 03 14:34:25 2013 +0200
+++ b/PCbuild/build_tkinter.py	Sun Nov 03 23:24:27 2013 +0800
@@ -11,8 +11,8 @@
 here = os.path.abspath(os.path.dirname(__file__))
 par = os.path.pardir
 
-TCL = "tcl8.5.11"
-TK = "tk8.5.11"
+TCL = "tcl8.5.15"
+TK = "tk8.5.15"
 TIX = "tix-8.4.3.x"
 
 ROOT = os.path.abspath(os.path.join(here, par, par))
diff -r c40b573c9f7a PCbuild/readme.txt
--- a/PCbuild/readme.txt	Sun Nov 03 14:34:25 2013 +0200
+++ b/PCbuild/readme.txt	Sun Nov 03 23:24:27 2013 +0800
@@ -208,7 +208,7 @@
     Homepage:
         http://www.sqlite.org/
 _tkinter
-    Wraps version 8.5.11 of the Tk windowing system.
+    Wraps version 8.5.15 of the Tk windowing system.
     Homepage:
         http://www.tcl.tk/
 
@@ -258,7 +258,7 @@
 So for a release build, you'd call it as:
     nmake -f makefile.vc MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all install
 
-Note that the above command is called from within ..\..\tcl-8.5.11.0\win
+Note that the above command is called from within ..\..\tcl-8.5.15.0\win
 (relative to this directory); don't forget to build Tk as well as Tcl!
 
 This will be cleaned up in the future; http://bugs.python.org/issue15968
diff -r c40b573c9f7a Tools/buildbot/external-amd64.bat
--- a/Tools/buildbot/external-amd64.bat	Sun Nov 03 14:34:25 2013 +0200
+++ b/Tools/buildbot/external-amd64.bat	Sun Nov 03 23:24:27 2013 +0800
@@ -5,17 +5,17 @@
 call "%VS100COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
 
 if not exist tcltk64\bin\tcl85g.dll (
-    cd tcl-8.5.11.0\win
+    cd tcl-8.5.15.0\win
     nmake -f makefile.vc DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all
     nmake -f makefile.vc DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 install
     cd ..\..
 )
 
 if not exist tcltk64\bin\tk85g.dll (
-    cd tk-8.5.11.0\win    
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 clean
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 all
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.11.0 install
+    cd tk-8.5.15.0\win    
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.15.0 clean
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.15.0 all
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.15.0 install
     cd ..\..
 )
 
diff -r c40b573c9f7a Tools/buildbot/external.bat
--- a/Tools/buildbot/external.bat	Sun Nov 03 14:34:25 2013 +0200
+++ b/Tools/buildbot/external.bat	Sun Nov 03 23:24:27 2013 +0800
@@ -6,16 +6,16 @@
 
 if not exist tcltk\bin\tcl85g.dll (
     @rem all and install need to be separate invocations, otherwise nmakehlp is not found on install
-    cd tcl-8.5.11.0\win
+    cd tcl-8.5.15.0\win
     nmake -f makefile.vc DEBUG=1 INSTALLDIR=..\..\tcltk clean all 
     nmake -f makefile.vc DEBUG=1 INSTALLDIR=..\..\tcltk install
     cd ..\..
 )
 
 if not exist tcltk\bin\tk85g.dll (
-    cd tk-8.5.11.0\win
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 clean
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 all
-    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.11.0 install
+    cd tk-8.5.15.0\win
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.15.0 clean
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.15.0 all
+    nmake -f makefile.vc OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.15.0 install
     cd ..\..
 )