I am following note 1173433.1 for installing 10.2.0.4 on Windows 7. According to the note, you should be able to tell the GUI to ignore the error. However, the GUI never launches. All I get is a dos box that is checking os version and complains that version 6.1 is not valid. Is there a step missing in the note for doing this install? Jeffrey Beckstrom Database Administrator Greater Cleveland Regional Transit Authority 1240 W. 6th Street Cleveland, Ohio 44113