The error or notification that "osa.dll disabled" can arise from several scenarios:
Microsoft’s own knowledge base (KB articles) described disabling osa.dll to fix slow Office startup or conflicts with add-ins. osa.dll disabled
I recently encountered a legacy issue on a client machine running an older version of Microsoft Office. The system was experiencing significant slowdowns during boot, and Process Explorer pointed to osa.dll as the culprit. The error or notification that "osa