Some servers allow backslashes to be used instead of forward slashes. For example, our server, CompleteFTP, has an option to allow this. It's not really something we recommend, since it's non-standard, but some people need it for various reasons. Our server also allows colons in folder-names, so it's possible to set up a folder named C: in the virtual file-system. You could therefore emulate Windows paths. They wouldn't be genuine Windows paths though. I can't really speak for what other servers allow. I'm not really sure if CompleteFTP allows double slashes or not. If it does then you would be able to emulate those other paths. Why would you want to do it anyway?
ChangeWorkingDirectory allows you to use relative paths, such as "../mydir", whereas ServerDirectory only permits absolute paths.
- Hans (EnterpriseDT)