[MSDN Library April 2000] SetInstallLevel ControlEvent (100%)
MSDN Library - April 2000 > Platform SDK > Management Services > Setup > Windows Installer > User Interface > User Interface Reference > Control Events
[MSDN Library April 2000] SetInstallLevel Method (50.5952380952381%)
MSDN Library - April 2000 > Platform SDK > Management Services > Setup > Windows Installer > Automation Interface > Automation Interface Reference > Session Object