Cause I still have this problem sporadically from built to build. I´ve reinstalled StandAlone Build SP1 on our build machine but that did not solve it.
Do you each have the "Advertise if Prerequisites Are Elevated" option selected? If so, does turning it off resolve this? If not, I'm not sure what could cause this, unless the "/hide_splash" parameter does not work. (You could try passing in /hide_splash to your main invocation and see if that removes the first splash, just for extra information.)
Also potentially helpful, if you can catch the command line of the innermost setup.exe (whether launched from the msiexec process, or underneath that one) while the second splash is shown, could you share it?
I can reproduce the effect only sporadically. My Feature Prerequisites are .NET 2.0 Redistributable and Visual C++ 2005 SP1 Redistributable packages. Sometimes the splash will be displayed twice if both needs to be installed or .NET 2.0 only and sometimes not. Innermost Command line looks always like this: [SIZE="1"]InstallShield 11:32:18: *** Launching prerequisites (): C:\Documents and Settings\test\Desktop\FULL\Setup.exe /embed"{851F5EFB-4E65-4651-866E-186043930C23}" /hide_splash /hide_progress /runprerequisites"*List of Features*" /l1033 Action 11:32:18: Installing Microsoft .NET Framework 2.0. Installing Microsoft .NET Framework 2.0 MSI (c) (08!7C) [11:32:18:687]: PROPERTY CHANGE: Adding ISPREREQDIR property. Its value is 'C:\Documents and Settings\test\Desktop\FULL\ISSetupPrerequisites\Microsoft .NET Framework 2.0\'. Action 11:34:16: Installing Microsoft Visual C++ 2005 SP1 Redistributable Package (x86). Installing Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) MSI (c) (08!7C) [11:34:16:500]: PROPERTY CHANGE: Modifying ISPREREQDIR property. Its current value is 'C:\Documents and Settings\test\Desktop\FULL\ISSetupPrerequisites\Microsoft .NET Framework 2.0\'. Its new value: 'C:\Documents and Settings\test\Desktop\FULL\ISSetupPrerequisites\Visual C++ 2005 SP1 Redistributable\'. InstallShield 11:34:35: *** Prerequisites complete; return code 0[/SIZE]
Advertise if Prerequisites Are Elevated" is selected (Advertise Full UI). Passing /hide_splash to initial Setup.exe works.
Btw, I enabled the Small Initialization Dialog option for the releases and sometimes this small initialization dialog will be shown during the setup and sometimes not. Looks like that it appears only if Prerequisites installed already.
