Google said in an antitrust complaint filed Wednesday that Microsoft uses unfair licensing contracts in its Azure cloud computing business to stifle competition. In its complaint, Google — which ranks third globally in the cloud computing market behind market leaders Amazon Web Services and Azure — said Microsoft makes it harder for customers to move their workloads to competitors' clouds.

Google accused its archrival Microsoft of using its dominance in business software to unfairly benefit its cloud platform.

By Philip Blenkinsop BRUSSELS (Reuters) -Alphabet unit Google filed a complaint to the European Commission on Wednesday against what it said were Microsoft's anti-competitive practices to lock customers into Microsoft's cloud platform Azure.