hi, i want to start this trilogy with this game.
i'm begining with gog. i can launch my game but if i want start the game is say is not possible.
"The code execution cannot proceed because d3dx9_35.dll was not found"
Can you help me plz.

You need the June 2010 DirectX
See this post.
https://www.gog.com/forum/the_witcher/witcher_enhanced_edition_not_launching_help_please/post5

im downoald but is dont want to start

What happened when you clicked on DXSETUP.exe, did if give an error message?

I'm starting the game and he say i don't have the same file.
I downloads your files and i put in my laptop. i don't know what can i do ?

Once you have downloaded the file directx_Jun2010_redist.exe, you must execute it and install the software following the steps. After the installation of DirectX has been completed successfully, reboot the system and then try again to launch The Witcher.

where i put the files because i try and its dosent work

I don't understand what is your problem with the installer, could you please post a screenshot of the error you get? DirectX should install automatically.

What operating system do you use?

I have attached 4 images below.
Start by right clicking on your desktop and select "New" then "Folder" (See the attached new folder jpg below.)

Then download June_2010_redist.exe to your desktop.

You now have the exe and a new folder on your desktop. (See Directx jpg)

Double click on June_2010_redist.exe and a box will open, asking where you want the extracted files.
Click on "Browse" and scroll up until you see desktop, click on that and you will see new folder. Click on that and then click OK. (See instal jpg)

Then open the new folder and scroll down until you see DXSETUP.exe, and run that.
When it says installation complete, (See installed jpg),
you can then delete June_2010_redist.exe and delete the new folder from your desktop.