>Can someone help me on this. How can I use the incremental search in MultiColumn ListBox? Like for example in Column4 of the ListBox which I want the Incremental seach to trigger.
>
>Thanks.

You should add 'invisible' first column to listbox:
List.Rowsource="MyTable.Field4,Field1,Field2,Field3,Field4"
List.ColumnCount=5
List.ColumnWidth=0
This way user will see just 4 right columns, but incrementalsearch will be triggered by the leftmost (field4)