
If you've lost your boooklet or product key, tough luck. Nobody should have to mess with the registry to install or play the game. What the f*ck are you on about? There's only one product key per copy and that's the one on the back of the booklet. I need to find the product key and change it to the CD's key. So, you want a blank CD or DVD and find it's KEY NEAR THE HOLE ON THE CD(I Know, it sounds wrong).So after you find the CD's key, you go to registry editor and find Rockstar Games and then open it and hen click on Grand Theft Auto IV.Now, this is where I'm stuck.

And now your pi$$ed off because you can't even save the frekin" game at all. Then you enter your SAME product key from the BACK of your booklet. And then, you log into Rockstar Games Social Club and the game loads.

You look at the back of the booklet and enter it and it activates. I think I have the same problem as him, When you go to GTA IV for the first time after installation, it wants a product key.
