How does cfhttpparam work with a file?

[countdrak]

I am trying to figure out the exact nature of how cfhttp and cfhttpparam work in coldfusion.

I am using cfhttp to post a file to a server. Unfortunately the header information that cfhttp sends for the file is with an extension *.tmp even though I am uploading a different file type.

The problem is the server I am posting to rejects the *.tmp file. Is there a fix to this problem? How can I force it to not send *.tmp and the real file type.

Thanks.