Yep, to second the other folks here, nfs on windows works great. I've run databases over nfs on windows (scary, but true) and it worked fine. SFU probably works fine, but in the past, I used the open source cygwin program, which implements a unix posix environment on top of windows. I'd try that. You may have to look at the usermap.config file which maps windows and unix users to each other. If you don't use the same username in your domain and unix systems, then you need to do a manual mapping.
"domain\windows user" == unixuser
will give you a bidirectional mapping.
Cheers,
Nick