Installation and Operations Guide > Installing on Microsoft Windows > 2.2 Silent Installation
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2.2 Silent Installation
The Patran installation supports silent installations, which run in the background with no graphical interface or interaction with the desktop. Installations running in Silent mode rely on a preconfigured answer file to do the installation. Silent installations are generally used in a batch manner to facilitate installation on many machines on a network
Creating the Answer file
To create the answer file you need to run the Patran installation in normal (GUI) mode with a special switch which instructs the installation to record all of your answers in a specified answer file. Here is an example of the command:
z:\patran_20xx_windows.exe -r [-f1"c:\location\filename"]
The command assumes that the installation program is being executed from the Patran DVD-ROM mounted on drive z:, the "-r" switch instructs it to generate the answer file and the optional "-f1" switch specifies the location and name of the answer file. (The brackets around the "-f1" switch indicate that it is optional. You do not need to type the brackets.) If the -f1 switch is not specified, the answer file will be created as follows:
c:\windows\setup.iss
Running the Silent mode installation
To run installation in silent mode use the
-s” switch and specify the answer file in this manner:
z:\patran_20xx_windows.exe -s -f1"c:\location\filename"
Note:  
Please note that the switch f1 in this example is a one, not an L.