Thanks Malcolm. I've added your report to http://www.reid-consulting-uk.ltd.uk/projects/ffi/index.html It looks like it's working ok now on Solaris (except for the lack of f.i.wrapper) -- Alastair Reid alastair@reid-consulting-uk.ltd.uk Reid Consulting (UK) Limited http://www.reid-consulting-uk.ltd.uk/alastair/