Hi,
You can use the msi that you have generated as a prerequisite. Advanced Installer does not yet support to include multiple files for a prerequisite so in the "Media" page select "Create EXE setup file" and "Leave install files outside". In "Prerequisites" tab add your msi as a new prerequisite.
Also, make sure that all the cab files for your COM+ prerequisite resides in the same folder as the files generated by AI when building the package (exe, msi, ini).
For more informations about how to use prerequisites please follow this link:
http://www.advancedinstaller.com/user-g ... sites.html
Regards,
Gigi
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Gheorghe Rada
Advanced Installer Team
http://www.advancedinstaller.com