The installer uses Inno Setup, and using the command below installs silently, but at the end the installer launchs "A2 Updater" to ask for my registration. REG ADD %KEY%\070 /VE /D "A-Squared Trojan Scanner" /f REG ADD %KEY%\070 /V 1 /D "%systemdrive%\install\asquared\a2freesetup.exe /VERYSILENT" /f REG ADD %KEY%\070 /V 2 /D "pskill a2upd.exe" /f I tried adding the pskill, but then realized the installer is still running when it launches a2upd.exe, so it wont move on to the next line to run pskill. Any ideas? i'd really appreciate it.