About Application Compatibility for Mac
Topic Last Modified: 2009-10-19
When you install or update the Microsoft Online Services Sign In application, the Sign In application checks for applications on your computer that can be used with Microsoft Online Services.
If the Sign In application detects such applications, it configures them automatically for you. If the Sign In application requires any user input, it prompts you for information or action during the process. If you have more than one version of a compatible application, the Sign In application configures only the most recent version.