Vsphere Client 5.5 Download - For Windows 11 ((free))

Since VMware removed direct links for version 5.5 from their main download portal, use this method:

Alternatively, try using the IP address of your host directly rather than the vCenter DNS name, as this sometimes bypasses strict certificate validation.

Although the client is a desktop app, its login dialog uses IE rendering.

However, if you are stuck in "legacy maintenance mode" and need to manage an old environment, read on.