Q: How can I quickly get a list of virtual machines that don't have a specific version of Hyper-V Integration Services for a host?
A: The most elegant solution is to use System Center 2012 SP1 Operations Manager with the Hyper-V Management Pack Extensions, which has a view showing the VM Integration Services State. If this isn't an option, a simple Windows PowerShell command can show all the virtual machines (VMs) not matching your desired versions. Here's an example of how I used the command:
Get-VM | Where IntegrationServicesVersion -ne 6.2.9200.16433 | ft Name, IntegrationServicesVersion