Like every major operating system, Windows certainly does have "installable file-system" support. It can handle a wide variety of both disk and network file-systems, although standard retail distributions of the product don't provide many.
Furthermore: non-Windows support for Windows network file-system protocols is also quite robust. Therefore, if you put your mind to it, you do have a lot of options.
Last edited by sundialsvcs; 07-31-2009 at 11:32 PM.