Hello Roberto-
This is an MSI error actually. There doesn't seem to be an exact cause for the error, but there are a few suggestions.
1) Make sure you are an administrator on the computer
2) Make sure you are running the most recent version of DirectX
3) Make sure you have the most current version of the Microsfot Windows Installer (http://www.microsoft.com/downloads/details.aspx?FamilyID=889482fc-5f56-4a38-b838-de776fd4138c&DisplayLang=en)
Xaq