Small to medium companies (up to 300 users). Windows 10 Enterprise Office 365 (E3 or E5) EMS Although Office 365 is part of Microsoft 365, it is not replaced by Microsoft 365, and continues to be sold separately. Building on the experience of Office 365, Microsoft launched Microsoft 365 as a subscription service in July 2017 to make it more attractive for customers to buy a complete set of products. Microsoft 365 is an integrated bundle of Windows 10, Office 365, and the Enterprise Mobility and Security suite (EMS), packaged in different forms to meet the needs of different customer sectors. How to Expose Your End Users to New Features.How To Navigate Constant Updates Like a Pro.Exploring Microsoft’s Data Centers and Regions.This is the fifth post in our Unpacking Office 365 series. AvePoint is currently raffling off 5 annual subscriptions to new blog subscribers. Office 365 for IT Pros can be bought online for an annual subscription of $49.95. The eBook is available in EPUB, PDF, and Kindle versions. It is a comprehensive (+1,000 page) must have eBook for any Office 365 admin and the only guide constantly refreshed to remain current with Microsoft’s stream of updates. The following is an excerpt from Office 365 For IT Pros written by a group of experienced MVPs led by industry expert Tony Redmond.