VMware vSphere Client v4.1 Update 3 : VMware-viclient-all-4.1.0-799345.exe.
VMware vSphere Client v4.1 Update 1 : VMware-viclient-all-4.1.0-345043.exe.VMware vSphere Client v4.1 : VMware-viclient-all-4.1.0-258902.exe.All links from vSphere 4.1 through to vSphere 6.x listed below: The question of where to download the vSphere client, including previous versions, comes up now and again.