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[Multiplayer_X_]

I have been testing gesource and just to be safe have designed a legacy tutorial and workaround for source SDK 2007. This is only an option if you have any issues on Windows 10 or experience anything breaking or not working as well in the new 64 bit clients Steam has forced upon the community. The older source SDKs were designed for 32 bit and connection accuracy was designed for that architecture. The simple rollback option below is for gesource stability until betas or anything else Steam randomly releases as QUOTE "a fix for source SDK" etc. Steam has broken the mod countless times in the past with absurd beta releases and updates causing servers to not show up in game and a slew of other nonsense. This option guarantees the last stable build that worked perfectly starting in May of 2023. I highly recommend using a build that was designed to still work with older source SDK. Hope this is useful for all of you. MultiplayerX

GOLDENEYE SOURCE: COMPLETE CONNECTION & CHAT FIX
This guide fixes the "Account Used Elsewhere" error, Source SDK 2007 crashes, and the "Friends Network Unreachable" bug. By rolling back to the May 2023 build, you restore the legacy authentication needed for GE:Source servers while keeping your Friends list active.

Step 1: Force Downgrade the Steam Client
Close Steam completely. (Check the bottom-right system tray).

Right-click your Steam Shortcut on your desktop and select Properties.

In the Target box, delete everything and paste this exact line: "C:\Program Files (x86)\Steam\steam.exe" -forcesteamupdate -forcepackagedownload -overridepackageurl http://web.archive.org/web/20230531113527if_/media.steampowered.com/client -exitsteam

Click Apply and launch. Steam will download the May 2023 files and close automatically.

Step 2: Lock the Version (steam.cfg)
You must prevent Steam from auto-updating back to the broken 2025 version.

Open your Steam folder (usually C:\Program Files (x86)\Steam).

Right-click in the folder > New > Text Document.

Name it steam.cfg (ensure you delete the .txt at the end so it is a CFG file).

Open it with Notepad and paste:

Plaintext

BootStrapperInhibitAll=Enable
BootStrapperForceSelfUpdate=False
Save and close.

Step 3: Fix Friends Chat
This patch redirects Steam's internal browser to a working version of the chat servers.

Download: QuickPatcher v6.0.0 (Direct Zip)

URL: https://github.com/TiberiumFusion/FixedSteamFriendsUI/releases/download/Release-v6.0.0/QuickPatcher_Patch_v6.0.0+.zip

Extract the zip, run QuickPatcher.exe, and click Patch.

Step 4: Final Launch Setup
Since the patcher handles the chat connection, you only need the -vgui flag to keep the lightweight classic interface.

Right-click your Steam Shortcut > Properties.

Delete the existing Target and paste this final line: "C:\Program Files (x86)\Steam\steam.exe" -vgui

Click Apply and launch Steam.

Summary of Fixes:

May 2023 Build: Restores the legacy handshake to fix "Account Used Elsewhere" and SDK 2007 crashes.

v6.0.0 Patch: Manually fixes the Friends list so it connects even on this older build.

-vgui Flag: Restores the classic, stable Steam library UI.

Verification: In Steam, click Help > About Steam. It should list the build date as May 30 or 31, 2023.

[soupcan]

Thanks for the writeup, MultiplayerX. I appreciate the effort you put into researching this with Gemini.

We are happy to announce that Valve released a Steam beta update that addresses this issue. More info here.

The GE:S team does not recommend using an outdated Steam client.

[Multiplayer_X_]

OKay    Thank GOD they released an update