Microsoft License Requirement

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Microsoft license requirements in Parallels RAS

This section is to be used as guidance to provide clarity on Microsoft license requirements in a Parallels RAS environment while not used as an exclusive list. It is recommended to refer to your Microsoft licensing partner for further information.

Microsoft license requirements include:



RD Session Hosts

If Windows Server is accessed remotely (for non-administrative work) then you need a Remote Desktop Service (RDS) access license:


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Hypervisor and VDI

  1. In case using Microsoft Hyper-V as a hypervisor, Microsoft Windows Server Operating System (OS) Licenses are required

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  2. In case using Virtual Desktop Infrastructure (VDI), Windows Software Assurance or Windows Virtual Desktop Access (VDA) licenses are required. Microsoft licenses Windows by access device:
    • Virtual desktop access rights are a benefit of Windows Client Software Assurance (SA). Customers who intend to use PCs covered under SA have access to their VDI desktops at no additional charge.
    • Customers who want to use devices that do not qualify for Windows Client SA, such as thin clients, will need to license those devices with Windows Virtual Desktop Access (VDA) in order to access a Windows VDI desktop. Windows VDA is also applicable to third party devices, such as a contractor or employee-owned PCs.

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Microsoft Azure

Microsoft Online business services, such as Microsoft 365 or Microsoft Azure, require Azure AD for sign-in and to help with identity protection. If you subscribe to any Microsoft Online business service, you automatically get Azure AD with access to all the free features. To enhance your Azure AD implementation, you can also add paid capabilities by upgrading to Azure Active Directory Premium P1 or Premium P2 licenses.

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Windows Virtual Desktop

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You are eligible to access FSLogix Profile Container, Office 365 Container, Application Masking, and Java Redirection tools if you have one of the following licenses:

FSLogix solutions may be used in any public or private data center, as long as a user is properly licensed.


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Microsoft SQL Server

SQL Server is required if using Parallels RAS Reporting. SQL Server installation may be based on:



App-V is not licensed on its own, but included in other license agreements such as Microsoft Volume Licensing, Windows Software Assurance Microsoft, Remote Desktop Services (RDS) CAL, as part of a wider Microsoft licensing agreement. For instance, with an RDS CAL (either per-user or per-device), App-V client may be used on RD Session Host to deliver App-V applications.

To license App-V correctly it is recommended you to engage with a Microsoft Partner (solution provider) knowledgeable on Microsoft Volume Licensing (list of Microsoft Partners:


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