Strange... 3Dmark and PCmark do install silently, but when you start them after installation, they're not registered. There's a key in the ISS file so that's not the problem. ECHO. ECHO Installing PC Mark 2004 ECHO Please wait... start /wait %systemdrive%\Install\PCmark2004\PCMark04.exe -s -f1"%systemdrive%\Install\PCmark2004\setup.iss" ECHO. ECHO Installing 3D Mark 2003 ECHO Please wait... start /wait %systemdrive%\Install\3Dmark2003\3DMark03.exe -s -f1"%systemdrive%\Install\3Dmark2003\setup.iss"