Steps to create a Installshield Suite:
1. Launch Installshield and select "Create a new project"
2. Select "Suite Project"
3. In Packages section, select the installer that needs to be run
4. Select the MSI that needs to be added to suite
5. Select the appropriate option in the following screen depending upon the application.
6. Once the MSI is imported into suite, all the parameters will be populated automatically as highlighted in the below snapshot:
7. In the same procedure add 2nd MSI
8. Once the sequencing of installers is completed, Go to Releases and Build the suite to generate the output
9. Output Setup.exe acts like a bootstapper which can be used to install the installers that were added inside Installshield Suite.