1) Access the Existing ESXi 6.0 by browsing it from browser. From there you can download the vSphere client. 2) Download it from the link mentioned VMware Knowledge Base to download vSphere leint C#.
VMware, Inc. - 347.4MB - Freeware
![6.0 6.0](/uploads/1/2/5/8/125846099/344664948.jpg)
VMware vSphere, the industry’s most complete and robust virtualization platform. Create resource pools to manage compute, network, and storage capacity with ease, and deliver the highest levels of service with the lowest total cost per application workload. The most demanding datacenters around the world depend on vSphere – virtualize your business critical applications for unprecedented flexibility and reliability.