>Hi Ed.
>
>Sorry it has taken me so long to reply to this. I was in the process of a trans-continental move during the month of December so I was a bit out of touch ;-)
>
>>> (I'm close to writing one with exactly the behaviors I need as an ActiveX control.) Many of my apps involve route planning, so a re-arrangable list control, especially one that allowed easy block shifts (select three consecutive lines of a list and move them as a group within the list; select three discontinuous members, disallow movement of the group in the list, but permit other types of block operations (delete, drag to another list retaining their relative ordering, assign common properties) - stuff that is a recurrent theme in routing and packing applications that I seem to be writing. <<
>
>Sounds VERY cool! Can I take it for a test drive when you have it finished?

No problem; you're on the < ahem > pre-beta list for this project. It's shaping up nicely, implementing and manipulating a doubly-linked list traversed in linear fashion, which lets me treat any single node identically with any set of consecutive nodes in the list, at least from the standpoint of addition or deletion, and I'm working on an algorithm to let me search linked lists for common route containment based on the occurance of a set of three or more possibly disjoint nodes occuring in order within a given linked list. Designing this has been as much an exercise in topological modelling as programming...