use KML , address lookup, directions and 'share map' on the same map

I want to use my kml (or xml) file with places, but at the same time be able to search for places, use directions or 'share map' functionality. At the moment when I try to do that in Google or Bing, once I use KML file and search for a new place, I loos开发者_高级运维e my KML placemarks..

Is there a way to do that with Google or Bing maps?

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Google can only handle one query at a time. There is no way of overlaying queries (IE you're KML and search term) by default.

You could do it yourself by using JavaScript and the Google Maps API. http://code.google.com/apis/maps/documentation/javascript/