The text in this section was adapted from the VMware ESX 4.0 Update 3 Release Notes to include Hyper-V.

Windows Server 2008 R2 64-bit IP virtualization might not work on vSphere 4.0 Update 1 *
IP virtualization, which allows you to allocate unique IP addresses to RDP sessions, might not work on a Windows 2008 R2 Terminal Server running on vSphere 4.0 Update 1. However, IP virtualization works when you configure a physical Windows 2008 R2 Terminal Server, or when you run a Windows 2008 R2 virtual machine on XenServer 5.5 Update 2 Dell OEM Edition or Hyper-V. This issue might occur if you install VMware Tools after installing Remote Desktop services.

Workaround: Choose custom installation for installing VMware Tools, and remove VMCI from the list of drivers that should be installed.