The installer sets the TempFolder property to the full path to the Temp folder.
Authors should not need to set the TempFolder property. Windows Installer uses the GetTempPath function to retrieve the path of the directory designated for temporary files and to set this property.
A common value for this property is C:\Temp.
||Windows Installer 5.0 on Windows Server 2012, Windows 8, Windows Server 2008 R2 or Windows 7. Windows Installer 4.0 or Windows Installer 4.5 on Windows Server 2008 or Windows Vista. Windows Installer on Windows Server 2003 or Windows XP. See the Windows Installer Run-Time Requirements for information about the minimum Windows service pack that is required by a Windows Installer version.