This works folks!! It is a combined crack from Securom and PeDOR (or something like that)
No need to change settings to win2000 or re-install the game, and all that. Simply just copy the 2 files to your GTA4 directory. Start the game from Rockstar Games Social Club.
In order to save the game, you have to create a windows live account. Create an offline account. I dont know of an online account works.
This have been testet several times the last 3 days on 3 different computers. No crash, no drunken cam, and no problems at all!!
It has been testet with Avast before upload and goes clean.