Yes, Microsoft does have a knowledge base tool. It is called SharePoint and it is used for document management, collaboration, and team communication.SharePoint allows organizations to store and manage their information in an organized fashion, as well as provide features such as tagging, categorization, versioning, and searchability that enable users to quickly find the information they need.Additionally, SharePoint also includes features such as workflow management and notifications that allow organizations to keep track of changes in their data over time.