Excellent, thanks for that, it's a much better option. Plus it's dynamic, you can change the /powerthrottling setting on the fly and it picks up straight away (so "reset" to go back to original setting, "disable" to turn off throttling, "list" to show what is configured).
It appears to be a per-user setting - so the list for administrator is different to my normal user list.
The other thing I noticed is that you can show "Power Throttling" in the Task Manager "Details" tab, but it never showed vmware-vmx.exe being throttled, regardless of this setting, and yet you could see the change in CPU load almost instantly on Process Explorer. (I never expected it to be throttled, this is a desktop system - no battery - and historically Windows didn't do throttling on desktops, not sure if/when that changed. I wonder if having a UPS plugged in - which I do - makes any difference to what Windows decides to do in this regard?)
