• Delivery in 15 minutes, 24/7
  • Perpetual Microsoft RDS CALs
  • 60-day money-back guarantee
  • Installation support included

Buy Microsoft RDS CALs for Windows Server.

Microsoft Remote Desktop Services CALs — formerly Terminal Services — for Windows Server 2025, 2022, 2019 and 2016. Every user or device connecting to your deployment needs one, and we help you choose the right version, CAL type and quantity.

Choose your server version

Every order includes
  • Delivery email within 15 minutes, 24/7

    License document (PDF) with your license/agreement number, invoice in your company name, step-by-step setup guide and an installation video. A copy stays in your account.

  • Installation support, no extra cost

    Our team helps with licensing, activation and hands-on installation in RD Licensing Manager. Reply to your delivery email or write to [email protected].

  • 60-day money-back guarantee

    If a delivery, access or licensing issue can’t be fixed, you get a full refund. Ordered the wrong CAL type? Switch User ↔ Device once, free, from your account. Refund policy

What is RDS, and why are CALs required?

What RDS does

RDS provides remote access to Windows Server desktops, applications and shared work environments. In older releases the same role was called Terminal Services.

Why CALs are needed

Every user or device that connects to Remote Desktop Services needs an RDS CAL matching that Windows Server version.

How CALs are managed

CALs are installed and tracked through the Remote Desktop Licensing role in Windows Server.

What a CAL is not

An RDS CAL does not include the Windows Server operating system, application licenses, hosting or server setup.

For standard Windows Server environments

If it runs a supported Windows Server OS with the Remote Desktop Services role, these CALs apply — wherever the server lives.

Supported versions
2025 2022 2019 2016
Physical or virtual hosts

Bare metal or Hyper-V, in an Active Directory domain or a workgroup. The most common RDS deployment.

Most common
Hosting providers

A dedicated server, VPS or collocated host with a supported Windows Server OS.

Dedicated / VPS
Azure and dedicated cloud hosts

Azure, or a dedicated host at AWS, Google Cloud or another provider, running a supported Windows Server OS. Cloud deployments are licensed with User CALs.

User CALs
Who we are

RDS CAL specialists, not a general software store.

RDS CAL Store is run by Sysvista Solutions, a UK company that has been planning, deploying and licensing Microsoft Remote Desktop Services since 2015. We sell one thing — Windows Server RDS CALs — and we install them with you if you want the help.

Company Sysvista Solutions, England & Wales
Address 399 High St, London E15 4QZ, UK
RDS since 2015

Customer reviews

Trustpilot

Great service, price and delivery

Guy Carr
GB · 27 Aug 2026
Google

RDS CAL STORE provided an exceptional experience from purchase to activation. The license was delivered quickly, and the setup process was simple and hassle-free.

Daniel Simões
GB · 28 Jul 2026

Get remote users online now.

Delivery Within 15 minutes, day or night
Refund 60 days, full money-back
Switch User ↔ Device CAL, free