Bing Maps SDK - Silverlight [closed]

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I'm currently using Silverlight Bing Maps SDK for my project. I was just wondering is it possible to use SDK for free if my imagery (map images) come from OpenStreetMaps? Or in that matter, any other (free) map imagery provider.

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You can use Bing Maps for free (whether you're using OpenStreetMap data or Bing Maps' own data) so long as you conform to http://www.microsoft.com/maps/product/terms.html

Assuming it's for a commercial application, this basically means that you're limited to 125,000 sessions or 500,000 transactions per year. Any more than that and you'll have to have a licence. These limits don't apply if you're an educational/not-profit user, although there are some other limits on volume of geocoding requests etc.

Note that, just because you're using OpenStreetMap data doesn't necessarily mean that you don't need a licence - loading the map control itself counts as a "transaction", so if you do this more than 500,000 times in a year you'll still need to be licensed if you're using it for commercial purposes.

If you're not sure, try emailing maplic@microsoft.com