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I want to build a .NET application that can get an input of 2 lat/long points and return an output that specified the driving distance between the points. Appreciate suggestions for API's or methods to perform that task. Thanks

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Do you want to use web services, or with road network data sets stored on your local machine? – Kirk Kuykendall Sep 27 '11 at 19:09
I was thinking about web services, but any other solution will be accepted gladly – Sagi Sep 29 '11 at 8:41

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2 api's spring to mind, the ESRI network task service and the google directions service.

http://tasks.arcgisonline.com/arcgis/services

http://code.google.com/apis/maps/documentation/javascript/v2/examples/index.html

I'm sure Bing has one as well

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Hi Dowlers! Welcome to our site and thanks for contributing your answers. – whuber♦ Sep 29 '11 at 19:00
thanks whuber. I remember when this site started up but have been very bad about checking back in. I promise to so more often – Dowlers Sep 30 '11 at 3:02

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