Script to resolve VMTools update in 5.0 update

[Pighinr]

Recently we have migrated our Corp Envirnoment from vSphere 4.1 to vSphere 5.  When it was time to upgrade VMTools we were getting an error:

Update Tools failed. Edit the virtual machine's vmx file, add the  line below and try again. Please read KB article 1714 on tips for  editing a vmx file.

isolation.tools.guestInitiatedUpgrade.disable = "FALSE"

I was wondering if anyone has a PowerCLI script to make the change to the VM Config Params without powering down the VM itself.  We still have our Meditech env (70 vms) to upgrade to 5.0 so i would love to do it without reboots.

many thanks

Ryan

[LucD]

To change or add VMX entries see Retrieve and Set VM Advanced Configuration (VMX) settings

I'm not sure if the new parameter will be active without a poweroff/poweron of the VM