Thanks Lisa. I've since found the program we used in the past to do this in our archives and it was written in-house afterall. Works quite well.
>You may be able to ask Pete.
>
>To google him: he has a doctorate in chemical physics, I think, along with his Xbase background. So I think this is him:
>
>
http://cimpa.org/portugalinspection.htm (there's an e-mail somewhere in this article)
>
>>L<
.·*´¨)
.·`TCH
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"When the debate is lost, slander becomes the tool of the loser." - Socrates
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"De omnibus dubitandum"