While the vSphere Client 6.0 (the traditional "C#" or "thick" client) is a legacy tool, it remains essential for managing older ESXi hosts or specific legacy configurations. Following the transition of VMware products to Broadcom, finding direct download links has changed. Official Download Methods
However, there is a critical piece of information you need to know before clicking any download button:
VMware officially ended general support for vSphere 6.0 in 2020. If you are using the desktop C# client, you should plan to transition to web-based management interfaces or upgrade your environment. vsphere client 6.0 download link
https://www.vmware.com/go/vsphere-client
Because of this End of Life (EOL) status, VMware has removed the direct download links from its public website and the main "My Downloads" portal. But don't worry—if you have the proper entitlements or know where to look, the file is still accessible. While the vSphere Client 6
The only official source for VMware software is the (formerly VMware Customer Connect). You will need a valid MyVMware/Broadcom account with an entitlement for vSphere 6.0.
Once installed, using the vSphere Client is straightforward. Launch the application and follow these steps: If you are using the desktop C# client,
Note: Access to legacy software downloads may be restricted based on the user's license entitlement and account status.
Introduced as a partial-functionality tech preview in later 6.0 updates. Fully replaces legacy clients in versions 6.5 and newer. Does not require plugins or external frameworks. Security Warning for Legacy Software
The client typically requires a Windows environment (Windows 7 or later) to run.