>I have a library with the 3 almost identical container based classes. It looks like two of them are copy of the first with probably some changes. Now, I'd like to merge them into one class, but how can I figure out the differences between them?
>
>I already worked through the code in one of them (making some minimal adjustments).

GKK Comparison Editor allows you to compare visual class to visual class (two different VCX files) or two classes within a single VCX. You could use either option -- the first just make a copy...