First things first, sorry for my english :(

Ok, far in the storyline - gong stuff ;) - the game wants that I insert the play-disc 3 for continuing to play...
There's some kind of trick involving the .ini file that I don't know about?

Thanks for the help, I think I'm near to finish DD so any help is appreciated :D

There is no working No-CD for Divine Divinity exist. Beware of using so-called 'No-CD' by some pirated group named 'DRUNK'! CD3 is still needed to finish the game. If You don't have it, then use GoG game release. Period.

Did you install the disk version patch on the download version of the game, or is the disk version executable included in the Itailian translation mod (DD in Italian), or something? The retail version requires the play CD to be in a drive to play the cutscenes after the Blessing Ceremony (gong) and at the end of the game.

There is no way to uninstall just the patch, but you can uninstall the game and then reinstall it. If you manually replaced files you should be able to undo it manually, as well, if you backed up the originals.

Alternately, you may be able to install the game again in a different folder, copy the saved game folder before hitting the gong to the new install location, play that version long enough to get to the wastelands, save and then copy the save folder back to the original install. There is no problem having multiple version of the game in different folders, but there could be compatibility issues transferring saves (disk version saves can crash trying to load in the download version of the game, or load ok but with saving then disabled); I don't know if there are any issues with the Italian translation.

Another solution that would avoid uninstalling or reinstalling anything would be to just create a disk 3, either by burning an actual CD/DVD-R/RW or using a virtual CD program. The CD version of the game looks for a disk labeled LARIAN_DIV3 with a path [drive]:\disc3\static containing the *.bik files when it gets to the 2 cutscenes it needs the Play CD for. You can get the bik files from the download version install folder '..\Divine Divinity\static'.

I have installed the italian translation, so that was the problem, BUT thanks to the Virtual CD solution I made it :D
Now I'm the Wasteland, saved the game and it works even without the virtual CD!

You saved my day again (I had some problem with a quest and I found some of your posts on the Larian forum :P)
Thank you very much!

You're welcome.

With the updated disk version of the game there is no DRM, so if you skip the intro video, the only time you need the Play CD is for the cutscenes at the Blessing ceremony and end of the game.