Apparently AnyGameStarter has deleted all the lots and the sims I have created in the Belladonna Cove.
And unfortunately, I think that my attempts to solve the problem may have made things worse.

I explain step by step:
1) Last night I download the AnyGameStarter
2) I install an anygame with the standard AGS Installer that provides to load only the Base Game
3) So I insert the Base Game CD, I click on the icon of the anygame created and the base game starts without problems, loading only what it has to load
4) Previously I included in the Downloads folder (of the AnyGameStarter folder) a mod of mine that I had to test: the mod works perfectly with the AnyGame created, so I'm sure it needs only the base game
5) At that point, I exit from the game and I delete the AnyGame created because I no longer need it (and here I think to have made a wrong thing)
6) This morning I start the game as I always do, the game starts normally but it takes longer than normal to load and when the neighborhoods page is shown, a window says me if I want to load the custom content (and here I realized that something has gone wrong)
7) I click on the Belladonna Cove icon, all the sub-hoods I have added are still installed, so I load the neighborhood: all the lots and all the sims I have created are gone and it's showed me the original Belladonna Cove
8) After some minutes of nervousness, I realized that the problem is related to the AnyGameStarter installed yesterday
9) So I go on the Comments page of the AnyGameStarter and I see that many users have had the same problem
10) Then I've reinstalled the AnyGameStarter and here I think to have done another nonsense because the Sims2_Full.reg file included in the AnyGameStarter folder has changed from yesterday, since this morning I have loaded the game that has replaced all the old neighborhood files

So now, what I must do to have back my full game with all the lots and the sims created? Please don't tell me it's completely lost

If you look in EA Games/The Sims 2/Downloads, do you see all your normal Downloads, or just the file you were testing?

I see all the Downloads, all the custom contents, none of them has been deleted.
The AnyGameStarter (together with the loading of the full game that I've done this morning) has led the Belladonna Cove to its original state, deleting all the lots and the sims I have created and all the changes I've made in the neighborhood, but for a reason I don't understand, it hasn't deleted the predisposition of the sub-hoods I've added.
I don't have made a backup of the neighborhood before installing and uninstalling the AnyGameStarter (and this was another wrong thing).
So, how to solve the problem, hoping that is solvable?

I doubt that you can, that's why it says to make a backup. I hope I am wrong.

Do you have an older backup? I would cut the one the game has made now and paste in an older backup of your hood..

Unfortunately no, I don't have a backup of the Belladonna Cove.
The reason that makes me angry is why the AnyGameStarter has deleted all the lots and the sims I have created (but the predisposition of the sub-hoods has remained intact), in a neighborhood that I didn't even open while running the AnyGame, because when I've started the AnyGame created, I've loaded Pleasantview since with only the base game Belladonna Cove doesn't exist.
Why all this has happened?

Important updates: I've looked inside the folder of Belladonna Cove (E001 inside the Neighborhoods folder) and it seems that all the lots and the sims created haven't been physically deleted. I've also noticed that with the game loading of this morning, have been added many other characters in the Characters folder (I think they are townies).
So, lots and sims are there but they don't show in Belladonna Cove, why?

Waaait wait wait.

AGS doesn't change anything within your user data, it just changes which user data the game is using, by editing your Windows registry. So, I think what's happened is this: you played the AnyGame, that was all fine. When you quit the AnyGame, AGS is supposed to restore your registry to its original state, so that the game looks at your normal game again instead of looking at the anygame. That process failed. When you then started your game with EPs, the game was looking at your anygame, not your normal game; so it added Belladonna Cove and the other 'hoods, as if you had just installed the EPs anew. That's why it took so long to load, and is why you can't find your lots and sims in-game. The same thing has happened to me several times.

Do you know how to use the registry editor? The simplest solution in these cases, for me, is to go and correct the registry values AGS has changed by hand. That could be off-putting if you're not comfortable with regedit, though. As an alternative, have you tried merging the Sims2_FullGame.reg into your registry? You mentioned that that file had been changed - could you say what the changes were?

Exactly, but as I've written previously, lots and sims haven't been physically deleted, they are still in the folder of Belladonna Cove. The only problem is that they are not shown in the neighborhood when I load the game.
What values I have to correct in the registry editor?

Nysha can you tell me which values I have to correct in the registry editor? Please.

The reason, I believe, is that your game isn't looking at the Belladonna Cove that contains those lots and sims. It's looking at the one in your AnyGame.

Have a look at the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders

I've copied these out of the Sims2_FullGame.reg you uploaded. According to that file, the value for "Personal" in those should be "C:\\Documents and Settings\\Danny Power\\Documenti", and Common Files should be "C:\\Documents and Settings\\All Users\\Documenti". Those are the values that AGS generated, so I can't check if they're correct. If you've previously moved your Documents folder to another location - for example, mine is F:\Documents - then you should use that location in those registry values.

I'd also suggest checking HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders. There shouldn't be anything of interest in there, but it's still worth checking.

Hit Edit -> Find. Type in AnyGame, and tick Data. If you find any more registry keys using that search, post 'em here so we can see if they need fixing.

I have also fixed this problem in the past by moving my Documents location via Windows Explorer, but it's risky and if you plan to do that, I'd strongly suggest backing up your Documents folder first.

First of all, thanks for the reply.

In the registry keys:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
the value for Personal is correct.

Are also correct the values for Common Files in:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders


While the values in:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
are a bit different:


But I don't think this is a problem, or is it?

Then, I don't have the registry key:
HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
I have it till:
HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion

Then, I've found other registry keys related to AnyGameStarter, but they all refer to the installation files and to the zip file of the program, that I had on my Desktop, so I don't think they are a problem.

Ah, I have never changed my Documents folder, it has always been:
C:\Documents and Settings\Danny Power\Documenti

So now what is the next step?

Hmm, that's very interesting. Alright, try this test:
Delete the AnyGame3 folder (assuming you don't want it any more), and cut and paste your Documents/EA Games/The Sims 2 folder to your desktop. Start your game. Where does the game create its new folder?

Before I delete the AnyGame3 folder, I must click again on its icon and uninstall it with the proper option?

Good point. Rather than deleting it, just move it to the desktop. Move it back after the test.

I hadn't read your reply in time.
So I have uninstalled the AnyGame (it has automatically deleted its folder from the Documents), then I've moved the The Sims 2 folder from the Documents to the desktop, I've loaded the game and when it has arrived to the neighborhoods page, I have quit the game.
It has recreated the The Sims 2 folder in the same position, id est in the Documents folder.
What it means?

Hmm, that's very odd. You didn't copy anything into the Documents/EA Games/The Sims 2 folder at any point, did you?

Is it just Belladonna Cove that's affected? Are your other neighbourhoods damaged too?

What do you mean?
I don't know if other neighborhoods are damaged too, because this morning I have loaded only Belladonna Cove.
What transpires from your words is that I have no hopes to recover my neighborhood as I left yesterday
I've tried to open the Neighborhood.package of Belladonna Cove in SimPE and it has only the original lots and sims, but the strange thing is that the lots I've created and modified since I have the game are still in the Lots folder and the sims created are still in the Characters folder (I mean the "The Sims 2" folder that I've moved on the desktop).

That's why I asked if you had copied anything into that folder. If, for example, you had copied your AnyGame into the The Sims 2 folder, that could explain why your neighbourhood package was altered.

Do you have a backup of the neighbourhood? Have you checked to see if Windows' "previous versions of this file" option is any help? If both of those fail, you might want to try Mootilda's sim retriever program - but I still feel there might be a better way. I wish I knew what caused your neighbourhood package to be altered, because the AnyGameStarter could not have done it.

Believe me, I haven't added anything yesterday after I've installed AGS and I don't have copied the AnyGame into the The Sims 2 folder.
I don't have a backup of the neighborhood previous to the installation of AGS.
For the Windows' "previous versions of this file" option you mean the System Restore option available in the System Utilities of the PC?

No - system restore doesn't affect files. I'm talking about the Previous Versions tab, which you can access by right-clicking a file and hitting Properties.

I don't have this option.
What is the next step (if there is a next step)?

Would you confirm that you now have a backup of your save game? If not, you really should. Each thing that you do increases the chances of losing the current save game.

According to the AppFiles folder, you have the following:
"EPsInstalled"="Sims2EP1.exe,Sims2EP2.exe,Sims2EP3.exe,Sims2SP1.exe,Sims2SP2.exe,
Sims2EP4.exe,Sims2EP5.exe,Sims2SP4.exe,Sims2SP5.exe,Sims2EP6.exe,Sims2SP6.exe,,
Sims2EP7.exe,Sims2SP7.exe,Sims2SP8.exe,Sims2EP8.exe,Sims2EP9.exe"

Is that correct? Specifically, did you ever install a version of the Store Edition?

Have you tried double clicking on the Sims2_Full.reg file in your AppFiles folder to try to restore the registry?

When you run your game, the neighborhood packages for all neighborhoods will be modified. What happens when you run then exit your game? Do all of the neighborhood packages change (check Date Modified in Windows Explorer)? If not, then your registry isn't pointing to the correct save game. Search your computer and find the neighborhood packages which changed (you can Find on Date Modified).

I have a backup of all The Sims 2 folder (that includes the lots and the sims I've created), but this backup is following the installation of AGS. If the save game is stored in the E001_Neighborhood.package, I think it's lost because this package has been modified after the installation of AGS and after the loading of the game that I've made yesterday morning, with the AGS uninstalled.
The only thing I'm sure to don't have lost is that lots and sims created are still stored in their own folders, but the game don't see them.
It's correct, I've never installed the Store edition, I have all the EPs and all the SPs but no the Store Edition.
I have tried but only after the second installation of AGS. The Sims2_Full.reg of the first installation (that I think it contained the data of my modified neighborhood) was deleted, so I have clicked on the Sims2_Full.reg of the second installation, that I think it contained the data of the neighborhood returned to its original state: am I right?
However, nothing happened after I've clicked on that file.
Another thing I've noticed is that the game has automatically changed the cameras stored in the Cameras folder in the Documents: I had the Gunmod's Cameras, but the game returned automatically to its original camera configurations.
And the game returned automatically to the original settings (I mean the graphic, the sound, the game settings).
All the neighborhoods and the sub-hoods have been modified yesterday, even the neighborhoods that I don't use, so I think the registry is pointing to the correct save game.

Updates.
I've tried to recover the sims with the SimRetriever by Mootilda, but it didn't work.
So, I've moved again the The Sims 2 folder from the desktop to the Documents and I have launched the game.

First of all I've loaded other neighborhoods and not Belladonna Cove:
1) In Pleasantview all the lots that I've modified or added and all the objects I've added in the hood have not been touched or deleted, but it seems that the game has deleted all the sims I've created and it has remained only the original sims.
2) In a neighborhood I've created, all the lots created are still there and nothing has been touched (in this hood I don't have created sims).

And now we come to Belladonna Cove.
1) In the main hood, all the lots and the sims I've created have been deleted and the hood has returned to its original state.
2) In the commercial sub-hood of Belladonna Cove, the lots I've created have not been modified or deleted, but all the commercial lots owned by my character in the game (called Danny Power) are now owned by a character called Brenda Clouseau and all the commercial lots owned by the girlfriend of Danny Power (called Eva Tancredi) are now owned by Eva's mom, Maria Tancredi, that has been deleted.
3) In the university sub-hood, all the lots created or modified haven't been modified or deleted, but the game has deleted all the college students I've added in this sub-hood.
4) In all 3 vacation sub-hoods, the lots owned by Danny Power are now owned by (again) Brenda Clouseau (I think she took advantage of the absence of Danny Power to take possession of his properties).
5) In the Takemizu Village, a hotel lot (for a strange reason) has been replaced by an original lot of Belladonna Cove.
6) All the original families stored in the Family Catalog have been deleted in Belladonna Cove and in all its sub-hoods, while in Pleasantview and in the hood I've created, the original families are stored in the Family Catalog.

After all this, I am like this:

It really sounds like all of your neighborhoods were reset. If so, then there's nothing to be done without a proper backup.
Exactly how are you seeing that your custom made sims and lots are still in the E001 folder? Have you opened the user or lot or neighborhood packages in SimPE and examined the pictures and text to identify them? Did you browse the Lots and Characters folder using the Clean Installer and identify your custom sims and lots? If not, can you explain the procedure that you used?