Yes, SB5 can compile such a "wrapper" without any problem. Because you don't need any wizard interface nor an uninstaller system, the overhead will be around 80 KB.

The script to handle this would look like the following:

! Include your .msi files
Include Support File msi120.msi
Include Support File msi200.msi

! Get Windows Installer Runtime version
Set Variable %MSIVER% to SystemInfo(Windows Installer Version)

! Extract major version number
Set Variable %MSIVER% to Extract Major Number(%MSIVER%)

If %MSIVER% Equals "1" Then
Run Windows Installer %TMPDIR%\msi120.msi
ElsIf %MSIVER% Equals "2" Then
Run Windows Installer %TMPDIR%\msi200.msi
Else
Display Message Box "You don't have a valid Windows Installer Runtime available!"
End

If you buy SetupBuilder 4 Standard now (for $199.95) you'll get a free upgrade to SB5 when released.

BTW, we can compile this simple installer for you. After ordering, please send your .msi files to sb5@lindersoft.com