Christian
As far as I remember, Visio 2000 is already an MSI, and so cannot be repackaged. Microsoft apps tend to interact with Windows Installer, and so if you change any of the Component Codes, Feature names, etc., it will not work.
If you want to create a customised installation, you should create transforms using InstallShield Tuner, or Orca but if a package is already an MSI, repackaging it will oftem cause the app to fall over.
looeee