The file is a legacy activation tool, primarily used around 2015-2016, designed to bypass registration for Microsoft Office 2016 on macOS . Context & Performance
/Library/Receipts/ log.15.0.xxxx.xxxx.15.0.4569.1506 or higher.15.11.2 deviates significantly from the standard four-part build number structure used by Microsoft.Yes. Go to Control Panel > Programs and Features > View installed updates. Locate “Update for Microsoft Office 2013 (KBxxxxxx)” and uninstall it. This reverts mso.dll to the previous version. Mso15.11.2patch
Obtain Mso15.11.2patch.msp from an official source: Microsoft Update Catalog (catalog.update.microsoft.com). Search for “Office 2013 Mso” and locate the KB article associated with this patch. In Microsoft Office 2013, the build numbers usually
mso.dll), which are libraries used across Word, Excel, PowerPoint, and Outlook.*.cab or *.exe), a “patch” is a delta update—meaning it only contains changed bytes from the previous version, reducing download size.