How to Slipstream Service Pack 1 for TMG
Now that SP1 for Forefront Threat Management Gateway (TMG) 2010 is available, several people have asked if it is possible to slipstream this service pack into the installation bits. The answer is yes! For someone like me this is a tremendous time saver, as I typically install and configure TMG several times a week. Having SP1 integrated with the installation media ensures that I always have the latest version of TMG installed right from the start, eliminating the extra step of having to install the update each time I build a new system.
To slipstream TMG SP1, begin by copying the contents of the installation media to a folder on your hard drive. Next, open a command prompt and navigate to the \FPC folder, then execute the following command:
msiexec /a ms_fpc_server.msi /p <path_to_tmg_sp1>
msiexec /a ms_fpc_server.msi /p e:\tmg_sp1\tmg-kb981324-amd64-enu.msp
Complete the integration by following the prompts provided by the Microsoft Forefront TMG Service Pack 1 Installation Wizard (accept the defaults). Once complete you can burn the files to DVD or use your favorite utility to create an ISO image file.