anchor.diff:  :: Build Windows 7
   setlocal
   call tools\set_version.bat 0x0610
  -call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win7 Release|Win32"
  +call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win7 Release|Win32" /Out buildfre_win7_x86.log
   endlocal
   if %ERRORLEVEL% NEQ 0 goto :eof
   
   setlocal
   call tools\set_version.bat 0x0610
  -call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win7 Release|x64"
  +call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win7 Release|x64" /Out buildfre_win7_amd64.log
   endlocal
   if %ERRORLEVEL% NEQ 0 goto :eof
   
  
positive.code: :: Build Windows Vista
  setlocal
  call tools\set_version.bat 0x0600
  call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Vista Release|Win32"
  endlocal
  if %ERRORLEVEL% NEQ 0 goto :eof
  
  setlocal
  call tools\set_version.bat 0x0600
  call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Vista Release|x64"
  endlocal
  if %ERRORLEVEL% NEQ 0 goto :eof
  
  
negative.code: :: Build Windows 8
  setlocal
  call tools\set_version.bat 0x0620
  call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win8 Release|Win32" /Out buildfre_win8_x86.log
  endlocal
  if %ERRORLEVEL% NEQ 0 goto :eof
  
  setlocal
  call tools\set_version.bat 0x0620
  call ..\tools\callVisualStudio.bat 12 netkvm.sln /Rebuild "Win8 Release|x64" /Out buildfre_win8_amd64.log
  endlocal
  if %ERRORLEVEL% NEQ 0 goto :eof
  
  