If you install LeeSoft’s completely free ViOrb in your VMware Fusion Windows XP virtual machine (VM), then set the VM to use Unity mode, the ViOrb will stay running at the bottom left of your screen. As long as your dock isn’t massively long, there’s plenty of room for the Orb, and it works just like your Windows Start menu. You can then run programs in Unity mode and have access to the full Windows start menu, similar to Parallels’ Coherence mode

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Get a Parallels-like XP Start menu in Fusion’s Unity mode