If you are running XP Pro, you can run the built-in IIS ftp component via
add/remove windows component.

FileZilla might be a good alternative - it's simple, light-weight and  
open-source:
http://filezilla-project.org/

Otherwise, take a lot at the Wikipedia list of FTP server deamons:
http://en.wikipedia.org/wiki/List_of_FTP_server_software

Cheers.

--
Joern Schou-Rode

A little of both.

The decision is made early on in the project as to whether to bundle it with
the OS, and make it one of the "benefits of membership", or whether to
supply it as a separate application, capable of running on multiple systems.

Of course, there's a higher cost to be had when building an application to
run on multiple systems, so that's a consideration as well.

Alun.
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