php + windows servers: remote transfer

I need to have a file-uploader on a website that puts the uploaded file to a specific directory on a db server (unfortunately both are Windows).

The web server has apache2.2 and php (plus cURL). The Db server is running MySQL.

How do I do that/which secure protoc开发者_如何学JAVAol should I use (that is not FTP-based)?

(soon, but not soon enough, everything will be moved to Linux, so it doesn't have to be pretty—just secure)

Thanks!

Edit I can have users added to either system if necessary for authentication