How to automate file upload?

There's a POST form on my website that uploads a file (INPUT TYPE=FILE) using the "multipart/form-data" encoding.
I would like to be able to run a script from the command line that will upload the file automatically, without the need to fire a browser, search for the file, and hit the SUBMIT key.
Can anyone lead me in the direction of a solution?
Thanks!

 

you'll want to look for an FTP script

you can find many VBS scripts that can automate uploads

 

Thanks - I found a web client called curl, and it automates the job perfectly.