> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gc.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Microsoft 365 Admin Setup

> Instructions for IT admins to deploy GC AI for Word.

If your company requires IT administrator approval for Microsoft 365 add-ins, such as the GC AI add-in for Microsoft Word, please refer to Microsoft's guide, [Manage deployment of Microsoft 365 add-ins](https://learn.microsoft.com/en-us/microsoft-365/admin/manage/manage-deployment-of-add-ins?view=o365-worldwide), for instructions.

To ensure you can use GC AI seamlessly within Microsoft Word, your IT admin may need to manage the deployment of the add-in.

## Architecture & Security

GC AI for Word is an [OfficeJS web add-in](https://learn.microsoft.com/en-us/office/dev/add-ins/overview/office-add-ins). It runs as a sandboxed web application inside Microsoft Word's add-in iframe — it is **not** a COM or VSTO add-in. This means:

* No native executables are installed on end-user machines.
* No registry modifications.
* All code runs within the browser-based OfficeJS runtime and is subject to Microsoft's add-in security model.

For a comprehensive overview of our security posture, data handling practices, and compliance certifications, visit the [GC AI Trust Center](https://trust.gc.ai).

## Network Security Considerations

If you're experiencing a white screen after installing the add-in, your organization's network security platform (such as Netskope, Zscaler, or similar web filtering software) may be blocking required connections. See our [Troubleshooting Guide](/docs/gc-ai-for-word/troubleshooting-guide) for detailed configuration steps.