The complaint escalates a fierce rivalry among videoconferencing and collaboration tools, amid exploding demand as the coronavirus pandemic pushed businesses to shutter offices and move to remote work.
Slack does offer video calling, but has not emphasised the feature to the degree that Microsoft has for Teams. However, considering up until this point Microsoft has never even committed publicly to making Microsoft Teams for ARM64, this is, sadly, progress.
You can read about Slack's complaint in detail here.
Microsoft Corp. said in a statement Wednesday that it looks forward to providing the European Commission with more information and answering its questions.
"We created Teams to combine the ability to collaborate with the ability to connect via video, because that's what people want", Microsoft said in a statement.
Like Slack, Teams is aimed at enterprise customers and enables users to chat, video-conference and share files with one another.
Microsoft now joins fellow tech giants Alphabet, Amazon, Apple, and Facebook, which are all under some form of antitrust scrutiny.
Is Microsoft returning to its bad old ways, or just competing more effectively against upstarts like Slack? It hasn't been under formal European Union scrutiny since a 2013 fine for not complying with a pledge to offer a choice of web browsers.
The European Commission will review the complaint and decide whether to open a formal investigation.
Slack's general counsel, David Schellhase, added that the company wants fair competition and "a level playing field" and accused Microsoft of "reverting to past behaviour". Slack says Microsoft forces companies to install it for millions and blocks its removal. "Slack threatens Microsoft's hold on business email, the cornerstone of Office, which means Slack threatens Microsoft's lock on enterprise software". Microsoft does not have any condition for Teams uninstallation.
Fact: Microsoft Teams is not installed without user's permission.
Fact: Anyone can uninstall Microsoft Teams client from their PC at anytime. It also reported 122,000 paid customers, up 28% from when the company went public in April 2019.
"Slack is asking the European Commission to take swift action to ensure Microsoft can not continue to illegally leverage its power from one market to another by bundling or tying products", said David Schellhase.