Sorry, no, this isn't a feature of Windows.
You can do it in the GUI, or write a batch file (with separate lines for all those several 100 folders) or spend a few hours (or more) to master VBscript and write a script to do it.
If there's any logic in the names of the several 100 folders, I think that writing a batch file would be the fastest way. Something like:
Hope this helps
Common sense tells me there has to be a way to do this but I'm stumped. Using Microsoft Office (presumably 2003, not 2007) on the job. I'm trying to save myself A LOT of time here; I have to create one subfolder "Z" to be copied/inserted into several hundred other folders, all located within the same main folder "A". I could go into each folder and create a "Z" folder, but this could take a prohibitively long time. I'm convinced there's a direct command out there for simultaneous folder creation in multiple folders, but I have no clue where to start. Any thoughts? Or am I pipedreaming that Microsoft would ever be so considerate in the first place?