Installing memcache in Windows 7 (XAMPP)

php windows apache memcached xampp

You must run memcached server in Windows Control Panel->Administration->Services.

php windows apache memcached xampp

Run path/memcache.exe -d start and make sure memcache is started

php windows apache memcached xampp

As @Gigala say in comments you can get another php_memchace.dll for different php versions from here http://windows.php.net/downloads/pecl/releases/memcache/3.0.8

Download the extension for your php version following this example:

php_memcache-3.0.8-5.3-nts-vc9-x86.zip as "5.3" must be your php version

This works for me