11:45:23 INFO:	Installer activated, command-line=''
11:45:23 INFO:	Expanded full extraction path of SQL Express 2008 SP1 Package is 'C:\Windows\temp\{8F697BF2-69C5-4E27-89A8-81651C7547E4}'.
11:45:23 INFO:	Install scenario
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: Upgrade code is not set
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: There is no any product code for upgrade code 
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: Upgrade code is not set
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: There is no any product code for upgrade code 
11:45:23 ERROR:	CSSEInstaller::GetInstanceId failed to read from reg 'MSFW' 
11:45:23 INFO:	CSSEInstaller::Prepare: Failed to get the instace id of MSFW
11:45:23 ERROR:	CSSEInstaller::GetInstanceId failed to read from reg 'ISARS' 
11:45:23 INFO:	CSSEInstaller::Prepare: Failed to get the instace id of ISARS
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: Upgrade code is not set
11:45:23 INFO:	CMsiAttendantInstaller::Prepare: There is no any product code for upgrade code 
11:45:23 INFO:	Installing ISA (Core components)...
11:45:23 INFO:	CFirewallInstaller: Activating installation, command line args = '-I "C:\Microsoft Forefront TMG\FPC\MS_FPC_Server.msi "WRAPPER=1 ARPSYSTEMCOMPONENT=1 MEDIAPACKAGEPATH=\FPC\ REBOOT=ReallySuppress'
11:47:38 ERROR:	Setup failed. Error returned: 0x643
11:47:38 ERROR:	CBasicInstaller: Install failed, hr=0x80070643
11:47:38 ERROR:	Installation failed. hr = 0x80070643
11:47:38 ERROR:	Installation failed, hr=0x80070643
11:47:38 ERROR:	InstallProducts: Install ISA (Core components) failed, hr=0x80070643