ActivePerl-5.12.2.1202-MSWin32-x86-293621.msi
————> ActivePerl-5.12.2.1203-MSWin32-x86-294165.msi
php-5.3.4-Win32-VC6-x86.zip
————> php-5.3.5-Win32-VC6-x86.zip
mysql-essential-5.1.53-win32.msi
————> mysql-5.5.8-win32.msi
ImageMagick-6.6.6-4-Q16-windows-dll.exe
————> ImageMagick-6.6.7-4-Q16-windows-dll.exe
This time, MySQL changed from 5.1 to 5.5. Its installed and server directory changed, too. So, it was necessary for me to recreate databases and to import data.