# System requirements

## **RAS Enrollment Server**

* Windows Server 2016 up to Windows Server 2025

## **RD Session Hosts**

* Windows Server 2012 R2 (x64 bit versions) up to Windows Server 2025

## **Desktop operating systems (guest VMs and Remote PCs)**

* Windows 7 up to Windows 11

Please note that 32-bit operating systems are not supported.

## **Parallels Client**

* Parallels Client version 18 or 19 is required.
* Supported platforms include Windows, Mac, Linux, iOS, and Android.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.parallels.com/landing/ras-admin-guide/parallels-ras-21-administrators-guide/saml-sso-authentication/system-requirements.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.