I've searched all over and have not found this. I need to make an Installshield 2015 installer that just installs unattended. No next clicking, no finish button to click, just installs and closes. I don't care if it is visible or not. No using a command line switch.
After some experimentation i figured out a way to do it.
Remove the following lines from the section:
<row><td>InstallWelcome</td><td>Not Installed</td><td>1210</td><td>InstallWelcome</td><td/></row>
<row><td>SetupCompleteError</td><td/><td>-3</td><td>SetupCompleteError</td><td/></row>
<row><td>SetupCompleteSuccess</td><td/><td>-1</td><td>SetupCompleteSuccess</td><td/></row>
You can optionally remove this if you want no progress bar:
<row><td>SetupProgress</td><td/><td>1240</td><td>SetupProgress</td><td/></row>
Save the file in the text editor