When the application is installed correctly, the EXE to launch the application should be located in c:\windows\system32\imdisk.exe. However, when you use AutoInstall to create an installation package, imdisk.exe is not placed in the correct location and there is no way to launch the application.
After deploying the AutoInstall package, you should find the required files in this location:
Symantec is investigating why AutoInstall is placing the executables in a different location than the manufacturer's installer places them. This document will be updated with additional information as it becomes available.