You can use the VMware Host Client, the vSphere Web Client and vCenter Server to manage your ESXi hosts.
For instructions about downloading and installing vCenter Server and the vCenter Server components or for downloading and deploying the vCenter Server Appliance, see Installing vCenter Server and Platform Services Controller on Windows and Deploying the vCenter Server Appliance and Platform Services Controller Appliance. For information about installing the VMware Host Client, see vSphere Single Host Management.