Name folder after current date?

I’ve got a Windows 2000 Server with a fax modem on which I recieve alot of faxes. Right now, all faxes are just saved to a folder called “fax”. I would like to automatically create a new sub-folder named after the current system date every time the first fax of the day comes in. All subsequent faxes on that day should also go into the current day’s folder.

I seem to remember being able to use variables such as %system_date% or %date% in login scripts, but I’ve yet to discover the correct wayto solve my current problem.

Thanks