yeyou-plus-plus

Project Overview

YeyouPlusPlus is a Flash browser for web games on Windows, bundling CEF 84 and the Adobe Flash PPAPI plugin so classic Flash titles on platforms like 4399 run without any setup. Its standout features are a built-in game speed changer and shadow instances for running multiple accounts. It ships as an installer with a self-contained package and no extra runtime needed.

A real Flash core plus game speed control, bringing classic web games back.

Key Features

• Real Flash core: bundled CEF 84 (Chromium 84) and Flash PPAPI plugin run Flash web games right away
• Game speed changer: MinHook inline hooks anchor-scale six time-reading functions, giving 0.5x to 5x speed both on the main screen and inside game instances
• Shadow multi-instance: clone the current page into a separate instance with fully isolated cookies, cache, and session, so two accounts can run side by side
• Quick home page: common entries and Bing search sit on the home page for fast access
• No runtime install: the installer is self-contained and needs no separate .NET runtime

Target Audience

• Players revisiting classic Flash web games
• Users playing web games on platforms like 4399
• Web game players who need multiple accounts open at once

Quick Start

1. Download YeyouPlusPlus_x.y.z_x64_Setup.exe from Releases
2. Run the installer, choose an install folder, and optionally create a desktop shortcut
3. Open the app and enter or select a web game site from the home page
4. In the game, enable the speed changer as needed and adjust between 0.5x and 5x
5. Use the Shadow feature to clone the current page when you need another instance

Core Advantages

• No configuration: the bundled Flash core and plugin mean it works out of the box without fiddling with plugins
• Stable speed control: inline hooks rewrite the time functions directly, so it stays effective inside game instances
• Isolated multi-instance: shadow instances keep cookies and cache separate, letting two accounts stay online at once

System Requirements

Item	Requirement
OS	Windows 10 / 11 x64
Runtime	No separate .NET runtime needed (self-contained installer)

Notes

• Windows x64 only, and the installer already includes the Flash plugin
• Uninstalling clears the install folder, cache, config, favorites, and quick entries
• Adobe Flash is end-of-life; the project is for personal learning and nostalgia, not commercial use