我们可以在Windows中实现Memcached，如果不是为什么

Question

I have Trying to use MemCached but its showing "class not Found error"

$Memcached = new Memcached(); 
$Memcached->addServer('127.0.0.1', 11211);

But when i Use Memcache everything works Fine :-

$memcache = new Memcache;
$memcache->connect("127.0.0.1",11211);

I have placed memcache.dll file in php ext directory and enable it in php.ini and i have also installed memcache.exe in windows as a service.

Just want to know what i am missing or what i need to do differently as memcache works like a charm while Memcached is showing error.

EDIT:- Memcache is installed and visible in the phpinfo file, thats why memcache is working but memcached is not working.I guess memcached is not feasible with windows.