I have installed memcached binary file in Windows 7 and started it as server.
When I type wmic process get description, exetuablepath | findstr memcached.exe I get t
Based on the comments, I assume you have not downloaded and installed memcached, but have successfully installed the memcached module for PHP. Basically, you've gotten the car keys, but don't have the car.
memcached is built for Linux, but it has been ported by others to Windows. This tutorial is old, but it might be what you're looking for: http://www.codeforest.net/how-to-install-memcached-on-windows-machine