WPE Pro cannot natively hook 64-bit processes. If your game or application is 64-bit (most modern software), you will need additional tools like a 64-bit DLL injector or use a 32-bit client.
Because the original developers abandoned the project years ago, there is no official website. If you search for a download, you will find links on hacking forums, GitHub repositories, and file-hosting sites. Wpe Pro Free Download Windows 10