Left4Dead2 Visuals Multihack

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if it happens right after clicking on exe injector then you didnt follow the red text near download button

No I followed the rules and downloaded and extracted dependencies and deleted that file in bin folder
The program appears with CS Junkies logo and Please Wait and after few seconds assuming while injecting game closes without any error message 
When checking in task manager there is no left over of l4d2.exe 
also could it be because i use -vulcan command to play the game? without it wont even work

also when I try to run exe of l4d2 exe i get this error message 

You have some issue with directx then. Try to repair the installation of directx enduser runtime https://www.microsoft.com/en-us/download...aspx?id=35

And i never tested the game with vulcan, its undeeded for visuals