Windows Installer Edition Of Office [FAST]
For organizations still relying on the Windows Installer edition of Office 2016, it is important to note that support lifecycles are approaching their end. Transitioning to C2R or the cloud-based Microsoft 365 apps is recommended to ensure continued security and access to modern collaboration features.
Some specialized third-party plugins or internal macros developed for older environments may specifically require the file structure created by an MSI installation. The Future of Office Installation
MSI installations often leave behind a cache of the installer files (the MSOCache folder) to facilitate repairs or adding features later, which consumes extra disk space.
Understanding the transition from MSI to C2R is essential for modern IT planning. While MSI was the standard for decades, C2R is now the primary delivery vehicle for Office.
Environments with no internet access or highly restricted bandwidth benefit from the local, static nature of MSI files.