Under the vSphere 6.0 release, look for:
Note: vSphere 6.0 is an older VMware release. This tutorial covers how to obtain the vSphere Client for vSphere 6.0, install it, and use it for common tasks. If you’re running newer vSphere versions, consider the vSphere Web Client / vSphere Client (HTML5) used in vSphere 6.5/6.7/7.0+. vsphere client 6.0 download link
You will likely need an active account and specific entitlements to access these archives. 2. Direct Download from the ESXi Host Under the vSphere 6