Outlook Perfmon Counters

Wonder if someone can help me?  I am accessing the Outlook performance counters (see here: http://social.technet.microsoft.com/Forums/scriptcenter/en-US/e045a1cc-f236-49cc-bae8-fa893f6d4374/outlook-perfmon-counters?forum=exchangesvradminlegacy)

You can only see them when outlook is run in admin mode and by using the 64bit version of perfmon.

I want to use powershell to query these counters, but can't for the life of me work out how to view the 64bit perf counters.

Any ideas?

Thanks