I got this answer from here;
http://www.modthesims.info/download.php?t=344611
It wont work! I get access denied messages
If you are using Vista (either normal or 64bit) then you may encounter this message. It occurs becuase of the location of the game files - in Program Files - often needs admin rights to access.
On Vista you have the UAC which is either disabled or enabled, but you also have either Admin or Limited users.
* If you are an Admin and you disable UAC then this program should work fine.
* If you are an Admin and you leave UAC enabled, then this program should request Admin privs, and then work fine.
* If you are a Limited User and you disable UAC, then you really shouldn't do that. You are crippling your PC. Either use an Admin account or enable it.
* If you are a Limited User and you have UAC enabled, then this program should request Admin privs, and then work fine.
(Note: The above assumes that you downloaded the TS3InstallHelper.rar on or after the edit time of this message).
You can try to get around by doing the following:
- Download the TS3InstallHelperUAC.rar.
- Install as per installation instructions
Or turning UAC off.
Note: If, after install, you dont get the right click menus, try the following:
- Right click a package file
- Select Open With
- Browse to the helper monkey (C:\Program Files\Mad Scientist Productions\InstallHelper\InstallHelper.exe)
- Open the file with the monkey
Don't hate me cuz you ain't me.