Under VFP 7.0, you should use _INCSEEK instead of _DBLCLICK.
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>Set the IncrementalSearch property of the combobox to .T., you may need to adjust the _DBLCLICK system variable in the GotFocus & reset it in the LostFocus events, to suit the expected typing speed.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer