I am running Windows Server 2003 and need to install a version of GD.
Can anyone point out some instructions or advice?
Check php_gd2.dll is in your extension directory and uncomment ;extension=php_gd2.dll of your php.ini.
You need to edit your php.ini (found in your C:/PHP folder if you installed PHP here). Add the following line (or remove the ; before it if it exists in there):
extension=php_gd2.dll
In Windows download related Debug Pack on php.net download page, it's contain most useful modules. After, uncomment related extension, for example to gd2:
;extension=php_gd2.dll on php.ini and uncomment extension_dir = "ext".
来源：https://stackoverflow.com/questions/7851011/how-do-i-install-gd-on-my-windows-server-version-of-php