Everytime I patch client.dll with ReCEG [...], a file which is named "client.dll.bak"is created. Actually, which file is the patched one , client.dll or client.dll.bak ?

BAK = Backup, therefore the patched one is "client.dll".

- L4D2 Installation - Razor1911 release aaplying with rzr-init.exe
- All required ncf files up-to-date with CF Toolbox
- REVOLUTiON Cracked left4dead2.exe
- Latest(2.0.0.8 ) client.dll with CEG
- Steam accessed by SteamUp! v2.1.4

Such a combination of L4D2 has been working fine until yesterday.
When I access Steam with SteamUp! and click "Left 4 Dead 2" in Steam,
an error message pops up "Failed to load the client DLL"

I've tried to use original left4dead2.exe with the cracked client.dll (patched by ReCEG v2), instead of REVOLUTiON Cracked left4dead2.exe & Latest(2.0.0.8 ) client.dll with CEG.

But still doesn't improve at all with the same error.

I prefer Steam Version to Standalone Version (such as Stryder Loader & Revolution Emulator).

Is there any solution / fix ?

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Last but not least :

Everytime I patch client.dll with ReCEG (that is , drag & drop the unpatched client.dll onto ReCEG), a file which is named "client.dll.bak"is created. Actually, which file is the patched one , client.dll or client.dll.bak ?

R-Diver
First of all use this client.dll it has been reported that it works with every crack.

If you want a Standalone.try the following things:

• Stryder Loader
• revEmu+rev L4D2 crack
• Steam006 crack

If you want cracked Steam:
1.Get cracked Steam:

• SteamUp!
• UnDeadPatch
• AVSMP

2.You need rev L4D2 crack

The Problem is fixed eventually !

HOW ?

I find out there is an error message "SteamAPI_GetSteamInstallPath could not be located in the dynamic link library steam_api.dll " coming out if I run left4dead2.exe with cracked Steam.

Out of my expectation , once I replace the original latest steam_api.dll with the current one , the game incredibly runs without CTD or error messages. Everything is back to normal !

One more remark ! You have to use original left4dead2.exe with patched client.dll by ReCEG v2.

However, I still do not understand how this problem happens since I update L4D2 with CFtoolbox as usual & the game is cracked by REVOLUTION ReCEG. Finally, thank you for your quick replies.