I have an app where users upload their files into folders identified by their unique userids.  These user folders are in a virtual directory.

I need to be able to save the file along with the GUID into the user folder so ideally I would be able to specify the save folder at runtime.

For example, User 345 uploads a file called Payroll.xls.  This will be saved in a virtual folder on the server:

/VirtualFolder/User345/Uploads/{23487432nkdskhdsf324987234}_Payroll.xls

How can this be done?

Steve