The “Flickr Search Connectr” for Windows 7 is a combination of two components that allow you to search and access images on Flickr right in the Windows 7 Explorer using the new “Search Federation” platform. The first is a OpenSearch Description File generator (also known as the “Search Connector” in Windows 7) and the second is a Flickr web service.
What federated search is about is the ability to search remote file repositories on the local network or web. In Windows 7, this feature is implemented natively in the shell. And because Microsoft is the evil monopoly it is, it’s implemented using open standards OpenSearch and RSS2 so it’s simple for developers to take advantage of.
As a theory as to why not many people are excited about this, the example Microsoft used to promote this feature (on their website and at PDC08) was searching an online Sharepoint server. Practical, but not cool at all. It may be an enterprise feature by design, but I think it has legs as a consumer feature too which is why I built this Flickr as a proof-of-concept.
Source:→ Long Zheng