So toady I asked a friend (Brad Stone) how to first search for PTF’s concerning a specific problem I was having with QShell, and then, once I found a PTF, how to determine if it was applied on the machine. I didn’t want to forget how to do it so I figured I would [...]

In a posting to the midrange.com lists, Scott Ingvaldson gave the following link which can executed on your Windows PC.
file:///C:/WINDOWS/Help/Tours/htmlTour/best_fr.htm
Click on the “More Secure; Easier to Manage” link. You should see a picture of a room for of iSeries machines :-) Yep, Microsoft knows where security comes from.