This is handy if you need to quickly connect to the console of a VM and don't need any other features of the vSphere web interface. The documentation from VMware says to run this from the web interface, but it can be run standalone, like this:
"C:\Program Files (x86)\VMware\VMware Remote Console\vmrc.exe" "vmrc://DOMAIN\USERNAME@VCENTER.DOMAIN.COM/?moid=vm-VMID"
VCENTER.DOMAIN.COM should be replaced with the FQDN of your vCenter server.
The "DOMAIN\USERNAME@" can be omitted, but if you are saving this command somewhere, you might as well include your username.
Use VMware PowerCLI PowerShell command "get-vm MACHINENAME | fl id" to find the VMID. Just use the part that starts with vm-. You can also get these from the ESX console.
Download VMRC from here: https://my.vmware.com/web/vmware/details?downloadGroup=VMRC90&productId=491. There is a link to this on the vSphere web page. This requires an account with VMware.