Downloading PHP extension (mbstring)
This extension is a dll file required during phpMyAdmin installation. I was in the process of installing and configuring phpMyAdmin to manage MySQL when I get a message asking for this extension. I could not find it in pecl-5.2.1-Win32.zip which I download from old php releases nor when I searched for it on PECL web site.In the end I had to reinstall the SDK using windows installer (php-5.2.1-win32-installer.msi), and during the installation I selected all the extensions.
Afterwards I found php_mbstring.dll in (php installation directory)/ext folder. Of course to activate this extension I modified php.ini file and uncomment the line that tells php engine about it.
