I have a master installation (Installscript Type) that I am working on that calls several other sub installations (InstallScript MSI Type) using the launchappandwait function. If one of them fails, or is aborted, the master installer continues to call the other sub installations making it difficult to abort the installation as a whole. Is there a way to determin if an installation that is called with LaunchAppAndWait has failed or been aborted, so that I can abort the master script as well. It appears that the return from the LaunchAppAndWait just returns if the application was launched sucessfully, but does not give any indication if the process completed properly.
I think LaunchApplication will be more helpful as you have greater control on different parameters.
Check this:
To obtain identification information about the launched process, use the LAAW_PROCESS_INFORMATION system variable or the LAAW_SHELLEXECUTEINFO system variable (if you are using LAAW_OPTION_USE_SHELLEXECUTE).
I'd look at LAAW_PARAMETERS.nLaunchResult; however you may also be able to tell by looking for some registry key (perhaps their Uninstall key) that a successful installation would place on the machine.
