Listing Minimized Applications

Does anyone know how to list all applications that are running, but not invisible ones? Preferably ones that are minimized, or under the application that is retrieving the list...

I know how to get a list of all of the running processes, but I don't want NON-VISUAL apps (apps with no apparent GUI) to be listed. I want to list apps like IE, or VB, a Windows Explorer view, or Outlook, etc... whatever is immediately accessible in the task bar.

I don't want to list apps in the system tray, or that run invisible like SYSTEM AGENT COM WINDOW. I am at the end of my rope on this one and have tried things like IsIconic and IsChild, etc... with no good results...

Any help is appreciated.