The tech company's new software is designed to help "combat disinformation" caused by deepfakes, which are computer-manipulated images that are used to replace one person's likeness with another.
Nina Schick, author of 'Deep Fakes and the Infocalypse', has welcomed the news, although she also observed that deepfakes remain quite rare.
She told the BBC: "The only really widespread use we've seen so far is in non-consensual pornography against women.
"But synthetic media is expected to become ubiquitous in about three to five years, so we need to develop these tools going forward.
"However, as detection capabilities get better, so too will the generation capability - it's never going to be the case that Microsoft can release one tool that can detect all kinds of video manipulation."
Meanwhile, Microsoft founder Bill Gates recently claimed that the future of the planet lies in using "clean electricity" and "decarbonising" how we travel.
He said: "To prevent the worst effects of climate change, we need to get to zero net greenhouse gas emissions in every sector of the economy within 50 years.
"Decarbonising how we move around is going to require lots and lots of innovation."