OBD 2 Software (Ford UK Vehicle)?

I'm looking for some free (or cheap) OBD software to analyse a potential issue on a Fiesta 1.5TDCi

I have a cable - so it's only the software I need. Just one thing, NOT SOME WORTHLESS DEMO.

Windows or Mac - either will do.

Could anyone post a link to a suitable site?

You won't find it free or cheap. It's a commercial product which costs a lot to develop and support and so it's charged for at the going rate.

The only free or cheap is if someone lends you their scanner or hires it out to you.