Reference Guide

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Titlesort descending Summary
E-learning

A now defunct SA (Software Assurance) benefit that provided self-paced online courses targeted at end users and IT professionals; replaced by free offerings branded “Microsoft Learn.”

ECAL

A name often given to a CAL (Client Access License) that covers access to a subset of advanced server functions only, and has as a prerequisite a matching base CAL. See synonym Enterprise CAL for in-depth entry

ECAL Suite

A collection of client-side licenses for accessing Microsoft server software that is a superset of the Core CAL Suite. See synonym Enterprise CAL Suite for in-depth entry.

ECS

Enterprise Cloud Suite (ECS) combined User SLs (Subscription Licenses) for Windows Enterprise, Office 365 Enterprise E3 suite, and the Enterprise Mobility + Security (EMS) E3 suite. Renamed; see Microsoft 365 Enterprise E3.

Edition

Used to distinguish the various SKUs within a product line, with differences including technical features, price, and occasionally use rights and license model.

Edition downgrade

A form of substitution, whereby a customer owning a license for a specific product edition deploys a different, generally lower-level edition instead. See synonym down edition for in-depth entry.

EMS

Suites that offer a collection of User SLs (Subscription Licenses) for several online services used to manage and protect user identities, devices, applications, and corporate data, along with licenses for corresponding on-premises software. See the in-depth entry Enterprise Mobility + Security.

Enterprise CAL

A name often given to a CAL (Client Access License) that covers access to a subset of advanced server functions only and has as a prerequisite a matching base CAL.

Enterprise CAL Suite

A collection of client-side licenses for accessing Microsoft server software that is a superset of the Core CAL Suite.

Enterprise CAL Suite SA Benefits

Summary of SA (Software Assurance) benefits associated with the Enterprise CAL Suite, organized by high and low value benefits

Enterprise CAL Suite Timeline

Outlines major changes to the Enterprise CAL Suite’s content and pricing.

Enterprise Cloud Suite

Enterprise Cloud Suite (ECS) combined User SLs (Subscription Licenses) for Windows Enterprise, Office 365 Enterprise E3 suite, and the Enterprise Mobility + Security (EMS) E3 suite. Renamed; see Microsoft 365 Enterprise E3.

Enterprise Desktop Virtualization

Technology that enables organizations to centrally define and distribute VMs (virtual machines) to PCs; licensed with MDOP (Microsoft Desktop Optimization Pack).

Enterprise Mobility + Security

Two suites that offer a collection of User SLs (Subscription Licenses) for several online services used to manage and protect user identities, devices, applications, and corporate data, along with licenses for corresponding on-premises software.

Enterprise Mobility + Security Suite Add-ons

Illustration summarizes the various Add-on options for the Enterprise Mobility + Security suites, including their prerequisites and contents.

Enterprise Mobility + Security Suite Packaging

Illustration summarizes which online services are included with Enterprise Mobility + Security suites.

Enterprise Mobility Suite

A collection of User SLs (Subscription Licenses) for several online services used to manage and protect user identities, devices, applications, and corporate data, along with licenses for corresponding on-premises software. Renamed; see Enterprise Mobility + Security for in-depth entry.

Enterprise Source Licensing Program

Permits qualifying organizations to view Windows client OS source code for debugging or other purposes; licensed on a subscription basis through SA (Software Assurance) covered Windows Enterprise Per Device licenses, Windows Enterprise User SLs, and VDA (Virtual Desktop Access) subscription licenses.

EOP

An online service that filters incoming and outgoing e-mail for malware and spam, is included as a built-in feature of Exchange Online, and is available for Exchange Server installations. See Exchange Online Protection (EOP) for in-depth entry.

Excel

Spreadsheet application available on client devices and platforms including Windows client OS, Mac, Android and iOS mobile devices, and Web browsers; typically licensed as part of an Office suite.

Exchange Hosted Filtering

A discontinued Microsoft-hosted service that filtered e-mail going into or out of organizations. See successor product Exchange Online Protection for in-depth entry.

Exchange Online

An Office 365-branded online service that provides e-mail, calendars, contacts, and tasks; works with Outlook clients; licensed standalone or as part of suites via User SLs (Subscription Licenses).

Exchange Online Advanced Threat Protection

An online service that augments the Exchange Online Protection service to provide additional protection against previously unknown malware, malicious URLs, and other types of threats. Renamed; see Office 365 Advanced Threat Protection for in-depth entry.

Exchange Online Archiving

An online service that archives e-mail from Exchange Online or Exchange Server in Microsoft data centers; licensed via User SLs (Subscription Licenses) or the Enterprise CAL Suite.

Exchange Online Protection

An online service that filters incoming and outgoing e-mail for malware and spam, is included as a built-in feature of Exchange Online, and is available for Exchange Server installations.

Exchange Server

A Windows Server-based server application that provides e-mail, calendaring, contact management, voice mail, and other collaboration features; licensed under the Server/CAL License Model.

Exchange Server CAL Types and Features

Illustration outlines the technical features licensed by the Exchange Server Standard CAL (Client Access License) and Enterprise CAL; covers versions 2013 through 2019.

Exchange Server SA Benefits

Summary of SA (Software Assurance) benefits associated with Exchange Server, organized by high and low value benefits

Exchange Server Timeline

Outlines major licensing and packaging changes to Exchange Server.

Extended hotfix support

AThis SA (Software Assurance) benefit, in the process of being phased out, waives certain fees associated with nonsecurity hotfixes for products in the Extended support lifecycle phase.

Extended Security Updates

Support offering that provides security updates and bulletins for versions 2008 and 2008 R2 of SQL Server and Windows Server, as well as for Windows 7 Enterprise and Professional, for three years after these product versions leave Extended Support.

External Connector

Licenses access by an unlimited number of nonemployees to instances of Windows Server running on a single physical server.

External User

An individual who is neither an employee of the licensed organization nor a contractor or agent working on the organization’s physical premises.