multiple listbox selection

[Mark Hutchinson]

Has anyone got ideas how I can implement a win95 -type approach to list selection from 
a listbox. I.e I want to be able to select one item, then either shift-select another 
and have everything else in between highlight, or control-select and highlight that 
item in addition to the first.

Mark Hutchinson                 "I love it when a plan comes together"