FTP on Windows is complete evil.
FTP on any platform is completely bad.
I just run OpenSSH on production Windows boxes, and use WinSCP2 to SCP the files over just like Explorer.
I have actually had that happen to me with Windows 2000 and FTP, and vowed never again to use an unencrypted way to authenticate to a site.
BTW, there's about 40 registry hacks and ACL permissions you have to change.
It's a bitch to get 2K up to some sort of snuff, but it works well if you don't use FTP

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Mitch