diff --git a/Modules/socketmodule.h b/Modules/socketmodule.h
index a24110f..8d19cbf 100644
--- a/Modules/socketmodule.h
+++ b/Modules/socketmodule.h
@@ -17,9 +17,10 @@
 # include <ws2tcpip.h>
 /* VC6 is shipped with old platform headers, and does not have MSTcpIP.h
  * Separate SDKs have all the functions we want, but older ones don't have
- * any version information. I use IPPROTO_IPV6 to detect a decent SDK.
+ * any version information. 
+ * I use SIO_GET_MULTICAST_FILTER to detect a decent SDK.
  */
-# ifdef IPPROTO_IPV6
+# ifdef SIO_GET_MULTICAST_FILTER
 #  include <MSTcpIP.h> /* for SIO_RCVALL */
 #  define HAVE_ADDRINFO
 #  define HAVE_SOCKADDR_STORAGE
diff --git a/Tools/buildbot/build-amd64.bat b/Tools/buildbot/build-amd64.bat
index 5175c62..8ec3328 100644
--- a/Tools/buildbot/build-amd64.bat
+++ b/Tools/buildbot/build-amd64.bat
@@ -1,6 +1,6 @@
-@rem Used by the buildbot "compile" step.
-cmd /c Tools\buildbot\external-amd64.bat
-call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
-cmd /c Tools\buildbot\clean-amd64.bat
-vcbuild /useenv PCbuild\kill_python.vcproj "Debug|x64" && PCbuild\amd64\kill_python_d.exe
-vcbuild PCbuild\pcbuild.sln "Debug|x64"
+@rem Used by the buildbot "compile" step.
+cmd /c Tools\buildbot\external-amd64.bat
+call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
+cmd /c Tools\buildbot\clean-amd64.bat
+vcbuild /useenv PCbuild\kill_python.vcproj "Debug|x64" && PCbuild\amd64\kill_python_d.exe
+vcbuild PCbuild\pcbuild.sln "Debug|x64"
diff --git a/Tools/buildbot/build.bat b/Tools/buildbot/build.bat
index ab3ea7d..976ce72 100644
--- a/Tools/buildbot/build.bat
+++ b/Tools/buildbot/build.bat
@@ -1,7 +1,7 @@
-@rem Used by the buildbot "compile" step.
-cmd /c Tools\buildbot\external.bat
-call "%VS90COMNTOOLS%vsvars32.bat"
-cmd /c Tools\buildbot\clean.bat
-vcbuild /useenv PCbuild\kill_python.vcproj "Debug|Win32" && PCbuild\kill_python_d.exe
-vcbuild /useenv PCbuild\pcbuild.sln "Debug|Win32"
-
+@rem Used by the buildbot "compile" step.
+cmd /c Tools\buildbot\external.bat
+call "%VS90COMNTOOLS%vsvars32.bat"
+cmd /c Tools\buildbot\clean.bat
+vcbuild /useenv PCbuild\kill_python.vcproj "Debug|Win32" && PCbuild\kill_python_d.exe
+vcbuild /useenv PCbuild\pcbuild.sln "Debug|Win32"
+
diff --git a/Tools/buildbot/buildmsi.bat b/Tools/buildbot/buildmsi.bat
index 56be05e..167efd0 100644
--- a/Tools/buildbot/buildmsi.bat
+++ b/Tools/buildbot/buildmsi.bat
@@ -1,20 +1,21 @@
-@rem Used by the buildbot "buildmsi" step.
-
-cmd /c Tools\buildbot\external.bat
-@rem build release versions of things
-call "%VS90COMNTOOLS%vsvars32.bat"
-
-@rem build Python
-vcbuild /useenv PCbuild\pcbuild.sln "Release|Win32"
-
-@rem build the documentation
-bash.exe -c 'cd Doc;make PYTHON=python2.5 update htmlhelp'
-"%ProgramFiles%\HTML Help Workshop\hhc.exe" Doc\build\htmlhelp\python30a5.hhp
-
-@rem buold the MSI file
-cd PC
-nmake /f icons.mak
-cd ..\Tools\msi
-del *.msi
-nmake /f msisupport.mak
-%HOST_PYTHON% msi.py
+@rem Used by the buildbot "buildmsi" step.
+
+cmd /c Tools\buildbot\external.bat
+@rem build release versions of things
+call "%VS90COMNTOOLS%vsvars32.bat"
+
+@rem build Python
+vcbuild /useenv PCbuild\pcbuild.sln "Release|Win32"
+
+@rem build the documentation
+bash.exe -c 'cd Doc;make PYTHON=python2.5 update htmlhelp'
+"%ProgramFiles%\HTML Help Workshop\hhc.exe" Doc\build\htmlhelp\python26a3.hhp
+
+@rem build the MSI file
+cd PC
+nmake /f icons.mak
+cd ..\Tools\msi
+del *.msi
+nmake /f msisupport.mak
+%HOST_PYTHON% msi.py
+
diff --git a/Tools/buildbot/clean-amd64.bat b/Tools/buildbot/clean-amd64.bat
index 9fb35e9..1ce1605 100644
--- a/Tools/buildbot/clean-amd64.bat
+++ b/Tools/buildbot/clean-amd64.bat
@@ -1,7 +1,7 @@
-@rem Used by the buildbot "clean" step.
-call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
-cd PCbuild
-@echo Deleting .pyc/.pyo files ...
-del /s Lib\*.pyc Lib\*.pyo
-vcbuild /clean pcbuild.sln "Release|x64"
-vcbuild /clean pcbuild.sln "Debug|x64"
+@rem Used by the buildbot "clean" step.
+call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
+cd PCbuild
+@echo Deleting .pyc/.pyo files ...
+del /s Lib\*.pyc Lib\*.pyo
+vcbuild /clean pcbuild.sln "Release|x64"
+vcbuild /clean pcbuild.sln "Debug|x64"
diff --git a/Tools/buildbot/clean.bat b/Tools/buildbot/clean.bat
index ec71804..0d4d12e 100644
--- a/Tools/buildbot/clean.bat
+++ b/Tools/buildbot/clean.bat
@@ -1,7 +1,7 @@
-@rem Used by the buildbot "clean" step.
-call "%VS90COMNTOOLS%vsvars32.bat"
-@echo Deleting .pyc/.pyo files ...
-del /s Lib\*.pyc Lib\*.pyo
-cd PCbuild
-vcbuild /clean pcbuild.sln "Release|Win32"
-vcbuild /clean pcbuild.sln "Debug|Win32"
+@rem Used by the buildbot "clean" step.
+call "%VS90COMNTOOLS%vsvars32.bat"
+@echo Deleting .pyc/.pyo files ...
+del /s Lib\*.pyc Lib\*.pyo
+cd PCbuild
+vcbuild /clean pcbuild.sln "Release|Win32"
+vcbuild /clean pcbuild.sln "Debug|Win32"
diff --git a/Tools/buildbot/external-amd64.bat b/Tools/buildbot/external-amd64.bat
index d82f54b..c38e612 100644
--- a/Tools/buildbot/external-amd64.bat
+++ b/Tools/buildbot/external-amd64.bat
@@ -1,17 +1,21 @@
-@rem Fetches (and builds if necessary) external dependencies
-
-@rem Assume we start inside the Python source directory
-call "Tools\buildbot\external-common.bat"
-call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
-
-if not exist tcltk64\bin\tcl85g.dll (
-    cd tcl-8.5.2.1\win
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all install
-    cd ..\..
-)
-
-if not exist tcltk64\bin\tk85g.dll (
-    cd tk-8.5.2.1\win    
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.2.1 clean all install
-    cd ..\..
-)
+@rem Fetches (and builds if necessary) external dependencies
+
+@rem Assume we start inside the Python source directory
+call "Tools\buildbot\external-common.bat"
+call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" x86_amd64
+
+if not exist tcltk64\bin\tcl85g.dll (
+    cd tcl-8.5.2.1\win
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 install
+    cd ..\..
+)
+
+if not exist tcltk64\bin\tk85g.dll (
+    cd tk-8.5.2.1\win    
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.2.1 clean
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.2.1 all
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 TCLDIR=..\..\tcl-8.5.2.1 install
+    cd ..\..
+)
+
diff --git a/Tools/buildbot/external-common.bat b/Tools/buildbot/external-common.bat
index 80316be..edcc82d 100644
--- a/Tools/buildbot/external-common.bat
+++ b/Tools/buildbot/external-common.bat
@@ -15,7 +15,7 @@
 @rem if exist tk-8.4.18.1 rd /s/q tk-8.4.18.1
 @rem if exist db-4.4.20 rd /s/q db-4.4.20
 @rem if exist openssl-0.9.8g rd /s/q openssl-0.9.8g
-@rem if exist sqlite-source-3.5.9 rd /s/q sqlite-source-3.5.9    
+@rem if exist sqlite-3.5.9 rd /s/q sqlite-3.5.9    
 
 @rem bzip
 if not exist bzip2-1.0.5 (
@@ -37,7 +37,7 @@
 if not exist tk-8.5.2.0 svn export http://svn.python.org/projects/external/tk-8.5.2.0
 
 @rem sqlite3
-if not exist sqlite-source-3.5.9 (
+if not exist sqlite-3.5.9 (
   rd /s/q sqlite-source-3.3.4
-  svn export http://svn.python.org/projects/external/sqlite-source-3.5.9
+  svn export http://svn.python.org/projects/external/sqlite-3.5.9
 )
diff --git a/Tools/buildbot/external.bat b/Tools/buildbot/external.bat
index 592c585..d6b18ae 100644
--- a/Tools/buildbot/external.bat
+++ b/Tools/buildbot/external.bat
@@ -4,7 +4,7 @@
 call "Tools\buildbot\external-common.bat"
 call "%VS90COMNTOOLS%\vsvars32.bat"
 
-if not exist tcltk\bin\tcl85.dll (
+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-8.5.2.1\win
     nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 INSTALLDIR=..\..\tcltk clean all 
@@ -12,10 +12,10 @@
     cd ..\..
 )
 
-if not exist tcltk\bin\tk85.dll (
+if not exist tcltk\bin\tk85g.dll (
     cd tk-8.5.2.0\win    
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 clean
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 all
-    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 install
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 clean
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 all
+    nmake -f makefile.vc COMPILERFLAGS=-DWINVER=0x0500 OPTS=noxp DEBUG=1 INSTALLDIR=..\..\tcltk TCLDIR=..\..\tcl-8.5.2.1 install
     cd ..\..
 )
diff --git a/Tools/buildbot/test-amd64.bat b/Tools/buildbot/test-amd64.bat
index d178c92..6124b51 100644
--- a/Tools/buildbot/test-amd64.bat
+++ b/Tools/buildbot/test-amd64.bat
@@ -1,3 +1,3 @@
-@rem Used by the buildbot "test" step.
-cd PCbuild
-call rt.bat -q -d -x64 -uall -rw
+@rem Used by the buildbot "test" step.
+cd PCbuild
+call rt.bat -q -d -x64 -uall -rw
diff --git a/Tools/buildbot/test.bat b/Tools/buildbot/test.bat
index 51569d2..fca0dca 100644
--- a/Tools/buildbot/test.bat
+++ b/Tools/buildbot/test.bat
@@ -1,3 +1,4 @@
-@rem Used by the buildbot "test" step.
-cd PCbuild
-call rt.bat -d -q -uall -rw -n
+@rem Used by the buildbot "test" step.
+cd PCbuild
+call rt.bat -d -q -uall -rw
+