Add more automated actions.

Tools/buildbot/buildmsi.bat

 @rem Used by the buildbot "buildmsi" step.
+
 cmd /c Tools\buildbot\external.bat
+@rem build release versions of things
 call "%VS71COMNTOOLS%vsvars32.bat"
+if not exist db-4.4.20\build_win32\release\libdb44s.lib (
+   devenv db-4.4.20\build_win32\Berkeley_DB.sln /build Release /project db_static
+)
+
+@rem build Python
 cmd /q/c Tools\buildbot\kill_python.bat
 devenv.com /useenv /build Release PCbuild\pcbuild.sln
+
+@rem build the documentation
 bash.exe -c 'cd Doc;make PYTHON=python2.5 update htmlhelp'
-"%ProgramFiles%\HTML Help Workshop\hhc.exe Doc\build\htmlhelp\pydoc.hhp
-cd Tools\msi
+"%ProgramFiles%\HTML Help Workshop\hhc.exe" Doc\build\htmlhelp\pydoc.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