compare text document versions?

[Paul]

Can anyone point me to a tutorial or example code of how to write VBScript
(or VB6) code that could look at two versions of a document and mark all
differences between the two?

I am working on a project for a newspaper. the goal is to be able to store
each version of an article from rough draft to final copy, and look at any
two versions in the process and see what changes were made.

Thanks.
Paul