Microsoft is enhancing Microsoft Teams for Windows by introducing a new call handler process in January 2026 to improve call performance and startup times. This architectural update will not impact user experience but requires IT administrators to allowlist the new process for security and troubleshooting purposes. #MicrosoftTeams #WindowsSecurity #ms-teams_modulehost.exe
Keypoints
- Microsoft plans to introduce a new call handler process called ms-teams_modulehost.exe in January 2026.
- This change aims to improve call performance and reduce startup times for Windows users.
- The new process will operate separately from the main Teams application without affecting user workflows.
- IT administrators should allowlist the new process in security software to prevent false positives.
- Additional security enhancements include blocking malicious URLs, file types, and screen capture during meetings.