Verifying the Integration Services Version on Host and Guest Machines

Hyper-V Integration services play a supportive role in administration of virtual environments by providing a lot of small but useful functionalities. 

For many third party components such as Veritas NetBackup to run smoothly there is a requirement that both client and server must be running the same version of integration services on them. 

There are two ways to determine the versions;

Method 1-

On the Server and Guest both; you may find the file "VMMS.EXE"on the following location

C:\Windows\System32

The "Properties" tab shows exact version of file

Method 2-

You can also verify the versions from registry

On the Guest: 

HKLM\SOFTWARE\Microsoft\Virtual Machine\Auto\IntegrationServicesVersion

On the Host: 

HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Virtualization\GuestInstaller\Version\Microsoft-Hyper-V-Guest-Installer-Win60-Package