Symantec Endpoint Protection (SEP) v12.1 client install packages may fail to run when they are exported from SEP Manager (SEPM) version v14_MP1.
The client setup.exe runs for some seconds and disappears, producing pop-up error messages as below.
"Symantec Setup Stub has stopped working"
Windows Application Error event ID 1000: "Faulting application Setup.exe..."
This happens when the SEP v12.1 client package has been exported from SEPM v14_MP1 with client install settings option set to "Automatically uninstall existing third-party security software". The resulting installer setup fails because the new AppRemover_API.dll is incompatible with SEP v12.1.
When replacing the AppRemover_API.dll, be sure to use exact 12.1.x SEPM version as the SEP clients you want to export.