IIS 7.0 FTP Virtual Directories

I am setting up an IIS 7.0 FTP Server on a Windows 2008 Server Standard Edition Domain Controller.

I have FTP User Isolation set to:
User name physical directory (enable global virtual directories)

I have FTP Directory Browsing set to:
MS-DOS and Virtual Directories

I have created a user called userabc and I have created a folder
%SystemDrive%/inetpub/ftproot/userabc.

In IIS, I created a virtual directory inside the userabc folder calledFiles that points to C:\Files.
I set the permissions on C:\Files to allow the user userabc to access it and the virtual directory'sTest Settings... result in nominal.

When I FTP in as userabc, I cannot see the virtual directory listed when I do adir command.

I have read several articles talking to this issue and they said to create a physical directory in the FTP user's physical directory that has the same name as the virtual directory so thedir command would list the name of the virtual directory.  I tried that and although I am now seeing an entry in thedir output called Files, it is the physical directory that I created and not the virtual directory.  If Icd in to Files, I see the contents of the physical directory, not the contents of the virtual directory.

 So, can anyone tell me the secret to making user virtual directories work in IIS 7 FTP?

Thanks in advance.