STORY: Microsoft faces a new antitrust complaint in Europe.
The trade group CISPE - which includes Amazon as a member - asked the EU to look into the tech giant's cloud computing practices.
The group alleged Microsoft's new contractual terms hurt the European cloud computing ecosystem.
It accused Microsoft of restricting choice and inflating costs as customers move to the cloud.
The body also said Microsoft used its dominance in productivity software to direct European customers to its Azure cloud infrastructure.
It further said Microsoft's approach locked in customers both on a technical and competitive level.
Microsoft said it was committed to addressing valid licensing concerns and supporting a competitive environment.
It said its licensing changes gave customers and cloud providers more options for running or offering software in the cloud.
The tech giant has been fined more than $1.6 billion by the Commission over the last decade for antitrust violations.