Uploaded the zipped folder: epskit_x64.zip that contains the .exe and installer.xml files.
Selected the "Override default installation" with epskit_x64.exe /bdparams /silent as the full command line
and checked: "Don't prepend msiexec.exe"
BitDefender installed silently with no reboot.
Setup Type: Windows Installer (Delivered as an EXE)
Deployment Method Used: Vendor Provided Command Line (switch driven)