This no longer works - do not attempt to place custom content in Program Files and do not use Monkey Bars or Helper Monkey to install your content. It does not make any difference whether the mod gets posted or not. Very old versions of The Sims 3 (prior to the release of World Adventures and its patch) would have mods and content in the Program Files directory.

The file is safe and necessary to install mods on The Sims 3. This is because it's a '.cfg' file, not because it's malware. The 'Resource.cfg' file may trigger some antivirus software programs.If you start up your game and get no intro animation, nor any sparkles when placing walls or fences, everything is working. The Packages folder will already have two files in it ('nobuildsparkles.package' and 'nointro.package') so you'll be able to check if your mods will work. The FrameworkSetup file will contain the necessary framework for your mods - a folder named Overrides, a folder named Packages, and a file named 'Resource.cfg'.Again, the location of The Sims 3 documents folder is Documents > Electronic Arts > The Sims 3. Select The Sims 3 documents folder when asked where to extract the contents of the zip file to. You need a program such as Winzip, WinRAR, or the free alternative 7-zip to Extract the contents of a zip file. Extract the contents of the Zip file to The Sims 3 documents folder.