I installed memcached by reading this article on Windows7 but unfortunately i keep getting error Fatal error: Class \'Memcache\' not found in D:\\xampp\\htdocs\\test\\
Also problem can be in loading another version of php module somewhere in apache .conf files. Need to check duplicated "LoadModule php..." directives and if that module compiled to correct version of apache. It seems sound simply, but not when you have several versions of php on one machine :) Or it can be SElinux problem too.