Audio and video delivery software company Burst.com has filed a lawsuit against Microsoft alleging that the software giant illegally used Burst's technologies which it spent years and millions of dollars developing.
The lawsuit comes as the US Department of Justice is attempting to wrap up the antitrust case against Microsoft.
Burst claims that Microsoft stole its trade secrets between October 1999 and December 2000 while negotiating to use Burst's technologies.
The company also claims that the Redmond giant used that information to build its recently introduced Corona technology, which compresses and decodes digital video.
In a suit filed in the California District Court, lawyers for Burst said that Microsoft's actions had caused the company "serious and continuing damage and have deprived consumers of valuable new technologies that threatened to disturb Microsoft's strategy to maintain and expand its operating system dominance to the delivery of high quality video over the internet".
Richard Lang, chairman and chief executive at Burst, claimed that the company's technology is essential to Microsoft because it enables high quality video-on-demand over the web, which is key to its .Net strategy.
"Microsoft's operating system monopoly put it in the position to simply take our technology and our business opportunities," he said.
"Microsoft has found that it pays to misappropriate the innovations created by others. We are asking the court to prevent that from happening again."
Lang explained that Burst has 34 issued patents, plus another seven pending.
A Microsoft spokesman said that he could not comment on the lawsuit as the company had only just received it.
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago