Building a CIFS Proxy using IFS??

Can I use IFS to build a CIFS proxy on a Windows 2003 server?

As an example a windows client A sees and accesses files on share X (all of
which are
intercepted by the IFS driver on windows m/c B which is exporting the share
X).
The IFS driver is then redirecting all I/O calls to a remote NAS share Y (on
a NAs server C).

eg \B\Y\x.txt calls are being transparently mapped by the driver at B
to \NAS\Y\x.txt

Any help would be greatly appreciated.

Sanjay