saolo996 wrote:"Impossibile avviare il programma perchè fmodex.dll non è presente nel computer [...]"
Not able to run the program because the file fmodex.dll is missing/not installed on computer, etc etc.
I don't know where to find it, given it's not old direct x file you were telling about in first posts.

Any suggestion/solution?
Thanks in advance!
Hello.
I'm sorry you were having trouble.
The fmodex.dll file is in the zipped file.
After you unzip the zipped file (arnie-and-the-hitchhiker.zip) you should see the following:
a folder named Assets (this folder contains wmv files)
a file named Arnie-and-the-hitchhiker.exe (this is the file you click on to run the game)
a file named fmodex.dll
a file named read me.txt
a file named screen1b.jpg
a file named screen2b.jpg
I just rechecked the download link in the first post, downloaded the zip file, unzipped it, and all of the files are there.
Someone unknown to me unzipped the game, deleted at least one of the files, re-compressed them using rar, and uploaded the visual novel to several file sharing sites (violation of the terms of use). I issued take down notices to those sites when I learned about this.
You may have gotten one of those unauthorized rar versions of the game, or the zip file might not have fully downloaded. Try downloading again from the link in the first post.
What version of Windows are you using? This visual novel has been tested with Windows XP, Vista, Windows 7 and Windows 8.
Very respectfully,
fleet