Video software developer Gotuit Media has sued Microsoft, claiming that its Silverlight multimedia software infringes several of the company's patents.

Gotuit Media filed the suit on Wednesday in a federal court in San Francisco, claiming that Silverlight infringes on three Gotuit patents, which cover ways of making videos searchable on the Internet.

Released last year, Silverlight is Microsoft's alternative to the Flash and QuickTime multimedia formats. Heavily promoted by Microsoft, it lets Windows users watch video or animated graphics through their browsers.

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