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Using Process Monitor For Fixing L4D2 Crashes

Many users complain about crashes of L4D2 while they are playing. The most common reason for that are the missing registries that when the game don't find, it crashes to desktop. Before continuing reading this manual make sure you have the latest registry fix from http://www.mediafire.com/?odqf2ckzymu. If you still have crashes then read bellow for how you can use Process Monitor to find those missing registries and register them manually.

1. Download Process Monitor from http://live.sysinternals.com/Procmon.exe

2. Run Process Monitor and uncheck the "Show File System Activity", the "Show Network Activity" and the "Show Profiling Events" like the picture bellow


3. Press Ctrl + L and on the Filters window press the Reset button.

4. On the "Display entries matching these conditions" put
<Process Name> <is> <left4dead2.exe> then <Include>
and press the Add button.


5. Press OK and open Left 4 Dead 2 and play until is crashed.

6. When the game crashes, go back to Process Monitor. Go to the end of the Log and then then scroll up until you find on the Operation tab for a lot of "Thread Exit" commands like the picture bellow


7. Before the first "Thread Exit" command you will see the registry that is missing.


8. Right click on it, select Properties and copy the Path.


9. Now let's register the missing registry entry. Open Notepad. On the first line write

Windows Registry Editor Version 5.00

and on the second line paste the path you copied before inside [].
Now change the first word of the path like this

HKCR --> HKEY_CLASSES_ROOT
HKCU --> HKEY_CURRENT_USER
HKLM --> HKEY_LOCAL_MACHINE
HKU --> HKEY_USERS

example:
[HKCR\CLSID\{8D083C4F-F8B1-42ED-851B-51017CF4C161}]
change it to
[HKEY_CLASSES_ROOT\CLSID\{8D083C4F-F8B1-42ED-851B-51017CF4C161}]


10. Go File --> Save As. On the "File name:" write regfix.reg and on the "Save as type:" select "All Files". Then open the saved registry to add the entries.

11. Play again the game. If it crashes search again with Process Monitor for other missing registry keys.

I hope this guide will help you to play L4D2 with no crashes.

Very nice, thanks for your tutorials, your contribution is much appreciated.

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im gonna test this soon, but i think not today, but this looks promising, i think it'll fix many problems

But I even don't think that this will work ..... if left4dead2.exe is trying to read the registry value from those registry files, it should be trying to read something useful rather then reading something useless or empty.

In the example I removed a registry that was needed by the game and the game crashed. After putting back the registry the game worked perfectly. The registry was empty.

With this registry fix a friend of mine could launch the game for the first time. With every crack we tested the game just crashed after the intro but now it works

Its definitely a reason for CTDs but it's not a good solution to make this for every PC. It would be nice if someone of the crackers is able to remove this stuff so that no registry fix is required.

this missing reg that cause the game to crash also appear on legit users,so its a game bug...VALVe if you reading this pls fix it so we can crack it properly

Thank you !

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LOL....nice one matrix

when i try to use procmon it just gives an error: Unable to load Process Monitor device driver.

any ideas?

best_matrix07
Awesome post!

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lmao

now imagine them posting this to their "powered" forums.. and ppl here discovered it..
or wait "credits to cs.rin.ru"..

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You should try to run the program with administrator access right.

nice but didn´t help on "shooting-team-crash" nothing missing before processexit

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www.teknogods.com

If you want, save a log of the crash and attach it here to check it.

Hello i wud like to ask if i did the right thing. I installed the reg files given by this topic the x32 and x64 i opened regedit and added those 2 files into that system i got 2 popups that this and this file was succesfully added and register has been updated or blablabla.... then i connected to a l4d2 server and i played thro 2 campaings NO CRASH:D:D:D usely it crashed 2-3 minutes into the game. Topic didnt tell were i gota put those 2 reg files so can any1 tell me if that was right place to put them? wich obv was? TY anyway:)