In the example below, the command should be typed on one line. Note the use of double backslashes (\\) and not single backslashes to denote a new folder. The Return Value for the variable KeyValue will be the value of the Name key in section 2 of the INI file named 3d.ini.
var KeyValue = GetINIFileData("C:\\Program Files\\Illuminatus Opus Pro\\Transitions\\3d\\3d.ini", "2", "Name")