>Williams,
>What's comm tools?
>Yau

Yau - a communications library specifically written for VFP.
It has been in existence a long time -
here's the blurb for the DOS product:
http://www.jjtc.com/Fox/software/commtool.htm

The official website is here:
http://www.magnacartasoftware.com/CommTools.htm

You may want to wade through the examples and docs here first:
http://www.magnacartasoftware.com/CommTools.Support.htm

I'm still curious though - did your interface card vendor supply you with a set of programming library tools ?

gufen xMas [Bill]