# Discovery Agent

{% hint style="info" %}
This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-application-discovery-user-guide.git)
{% endhint %}

## Prerequisites

* **Note**\
  The Discovery Agent has a 32-bit agent executable, which works on 32-bit and 64-bit operating systems. The number of installation packages needed for deployment is reduced by having a single executable. This executable agent works for Linux and for Windows OS. It is addressed in their respective installation sections that follow.

## Install on Linux

* **Note**\
  If you are using a non-current Linux version, see [Requirements on older Linux platforms](#old_linux).

## Install on Windows

* **Note**\
  The hotfixes for SHA256 support for Windows 2003 are no longer publicly available from Microsoft. If these fixes are not already installed in your Windows 2003 host, manual upgrades are necessary.
* **Note**\
  If you choose to reinstall the agent after uninstalling it, run the following command with the `/repair` and `/norestart` options.


---

# 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://awsnotes.dendron.so/migration-and-transfer/aws-application-discovery-service/topics/discovery-agent.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.