turbot,
well, that was what you asked for.
I have only used the interactive mode of the compare functions so far, but ...
If you look into the
lvdiff.vi block diagramm, you can see a call (via viserver) to
<lvdir>\project\procmphier.llb\CMP compare two VIs.vi with the input
Interactive? set to
TRUE.
Change this input parameter to
FALSE and wire the output parameters
same? and
Description to a function that does whatever you want to be done

with that information.
Happy wiring
Anke