When I want to install Diskeeper with the RunOnceEx method, I seem to do something wrong, I cannot get it installed... I am using the following syntax: REG ADD %KEY%\020 /VE /D "Diskeeper Pro 8.0.459.0" /f REG ADD %KEY%\020 /V 1 /D "%systemdrive%\Install\Applications\System\Diskeeper\Diskeeper_Pro_8.0.459.0.exe /s /v/qn REBOOT=Suppress" /f REG ADD %KEY%\021 /VE /D "Diskeeper Pro 8.0.478.0 Update" /f REG ADD %KEY%\021 /V 1 /D "%systemdrive%\Install\Applications\System\Diskeeper\Diskeeper_Pro_8.0.478.0_Update.exe /s /v/qn REBOOT=Suppress" /f After RunOnceEx.cmd has done it's work, and rebooted, I see no sign of Diskeeper, neither the old version or the updated version. Does anyone know why this app won't install?