---
title: "roblox-player:// Protocol Handler — Bloxstrap & Roblox Technical Glossary"
description: "The Windows registry URI scheme that connects the green Play button on roblox.com to your installed launcher. Learn how roblox-player:// Protocol Handler works in Bloxstrap on Windows 10 and 11."
canonical: https://bloxstraplabs.ink/words/bootstrapper-protocol-handler
updated: 2026-10-17
---

# roblox-player:// Protocol Handler

The Windows registry URI scheme that connects the green Play button on roblox.com to your installed launcher.

## Facts (2026-10-17)

- **Term:** roblox-player:// Protocol Handler
- **Summary:** The Windows registry URI scheme that connects the green Play button on roblox.com to your installed launcher.
- **Scope:** Bloxstrap & Roblox Windows Client

## What roblox-player:// Protocol Handler means in Bloxstrap

The Windows registry URI scheme that connects the green Play button on roblox.com to your installed launcher.

During installation, Bloxstrap registers itself as the handler for `roblox-player:` and `roblox:` links so launching from any browser invokes Bloxstrap automatically.

## Where you encounter this in the app

Bloxstrap wraps low-level Roblox configuration files, log watchers, and registry handlers into a clean WPF settings menu so you rarely need to edit raw files by hand.

Download the latest Windows installer at [/download](https://bloxstraplabs.ink/download) or browse the [Engine](https://bloxstraplabs.ink/engine) and [Setup](https://bloxstraplabs.ink/setup) hubs for step-by-step guides.

## FAQ

### What is roblox-player:// Protocol Handler?

The Windows registry URI scheme that connects the green Play button on roblox.com to your installed launcher. During installation, Bloxstrap registers itself as the handler for `roblox-player:` and `roblox:` links so launching from any browser invokes Bloxstrap automatically.

### Does this modify the Roblox game executable?

No. Bloxstrap only interacts with official configuration files, asset directories, and log files on disk.

## Related

- [Bloxstrap Technical Glossary](https://bloxstraplabs.ink/words)
- [Bloxstrap Engine & FastFlags](https://bloxstraplabs.ink/engine)
- [Bloxstrap Windows Setup & Installation](https://bloxstraplabs.ink/setup)
- [Can You Get Banned for Using Bloxstrap on Roblox?](https://bloxstraplabs.ink/ask/is-bloxstrap-safe-and-bannable-on-roblox)
- [FastFlags (FFlag, DFInt, FString, FLog)](https://bloxstraplabs.ink/words/fastflags-fflags)

## Download

Free Windows app: [Download Bloxstrap](https://bloxstraplabs.ink/download)

Markdown mirror: https://bloxstraplabs.ink/words/bootstrapper-protocol-handler.md