One of my earliest uses of PowerShell was to get information through WMI queries on our Exchange 2003 servers. It worked and gave us the information I needed. Recently I came across a post from Don Jones on reading the PowerShell help files more closely. He's right you should.

The new script seems faster as well. I should probably look at those performance test cmdlets the MVPs all run from time to time to see if it's a real performance kick or subjective.

Compare it to my original code.

Of course, it probably helps if you're a better script writing then I am and have a better understanding of all the jargon you're reading, but this is why I like the blogs, you generally learn something often enough that really helps out later.