For MicroStation 8Vi (Select Series 2) the following command line can be used for Win7 x64. It installs the prereqs, the registry value to tag that prereqs are installed, the main install, and imports a .reg file with the connection to the license server. To configure the license server do it manually once and export the registry key (would be different under 32-bit): HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Bentley\Licensing\1.1

Script assumes 64-bit (32-bit would need to be slightly changed and uses the %~dp0 variable for source directory)

rem Install prereqs that apply to Win7 x64 and Office 2010
msiexec /i "%~dp0Prereq Bentley Application 8.11.07.03\DhtmlEd.msi" /quiet /norestart
"%~dp0Prereq Bentley Application 8.11.07.03\DXSetup.exe" /silent
rem Install registry tag that main install looks for
REG ADD "HKLM\SOFTWARE\Wow6432Node\Bentley\XM_Prerequisite\081107xx" /v InstalledVersion /t REG_SZ /d "08110703" /f

rem Install Other components
msiexec /i "%~dp0DgnIFilterSetupx64.msi" /quiet /norestart
msiexec /i "%~dp0DgnThumbnailProviderx64.msi" /quiet /norestart
msiexec /i "%~dp0RealDwg2010.msi" /quiet /norestart
rem Install Microstation
msiexec /i "%~dp0MicroStation.msi" /quiet /norestart

rem Install Registration
REG IMPORT "%~dp0LicensingInfo\Bentley MicroStation V8i Licensing.reg" /reg:64