Búsqueda usando un índice con ADO.

[Neftali [Germán.Estévez]]

Segun la ayuda:

(... English....)
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Propiedad IndexName
Specifies the currently active index.

property IndexName: String;

Description
Use IndexName to activate an index and cause it to actively order the dataset’s rows. At runtime, set IndexName to aString containing the name of the index. At design-time, select the desired index from the drop-down list in the Object Inspector.
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Pues yo creo que está bastante claro. En diseño seleccionas aquí el índice o en ejecución puedes asignarle una cadena con el nombre del índice que desees.