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# Install components silently

A silent installation is an installation that is performed without the need for user interaction. You use the command line to run the setup files. For details, see Installation command line options.

Note:

- Use standard MSI command line options to define installation properties. For example, use INSTALLDIR to specify an alternate installation folder.

- To prevent the OpenText Professional Performance Engineering Agent on the load generator from starting immediately after installation, add the following to the command line command: `START_LGA=0`. The agent enables communication between the load generator and Controller.

To perform a silent installation:

1. Run one of the following commands from the command line:

   - To install all of the components including the prerequisite software, using a single command:

     `<Installation_package>\lrunner\<your_language_folder>\setup.exe /s`

   - To first install all of the prerequisites, and then OpenText Professional Performance Engineering, run the following commands:

     `<Installation_package>\lrunner\<language_folder>\setup.exe /InstallOnlyPrerequisite /s`
     `msiexec.exe /qn /i "<Installation_package>\lrunner\MSI\LoadRunner_x64.msi"`

   - By default, Network Virtualization is installed during the full installation. To facilitate this installation, add the following to the installation command:

     `REBOOT_IF_NEED=1`

   - To prevent the installation program from installing Network Virtualization, add the following to the installation command:

     `NVINSTALL=N`

   - To install Gatling or JMeter as part of the OneLG installation, add the following to the installation command:

     Gatling:

     `INSTALL_GATLING=1`

     JMeter:

     `INSTALL_JMETER=1`

   - (From version 25.3) During the installation of OpenText Professional Performance Engineering Agent, OneLG load generator, MI Listener, or Monitors over Firewall components, the agent is configured to run in SSL mode: To run the agent in non-SSL mode, add the following to the installation command:

     `SECURE_CONNECTION=0`

   - To secure your environment with TLS certificates and/or two-way TLS for OpenText Professional Performance Engineering products, OneLG, MI Listener, or MOFW, add the following to the installation command as relevant:

     CACERT = <path to the root certificate in *.cer format>

     CERT = <path to the server certificate in *.cer format>

     CACERT_PK = <the CA certificate private key>

     CACERT_PK_PWD = <password for the CA certificate encrypted private key>

     CERT_PK = <the TLS certificate private key>

     CERT_PK_PWD = <password for the TLS certificate encrypted private key>

     TWO_WAY_SSL = High | Medium

     Example: The following command performs a silent installation of MI Listener.

     `SetupMIListener.exe /s /a /s INSTALLDIR="C:\Program Files (x86)\OpenText\MI Listener" IS_RUNAS_SERVICE=0 START_LGA=1 NVINSTALL=N CACERT=c:\temp\root.cer CERT=server.cer TWO_WAY_SSL=Medium`

     For certificate requirements, see Secure communication with TLS (SSL).

   - To install an OpenText Professional Performance Engineering standalone application (not VuGen or OneLG):

     `<Installation_package>\Standalone Applications\Setup``<component_name>``.exe /s /a /s`

   - To install VuGen and OneLG:

     `<Installation_package>\Standalone Applications\SetupVuGen.exe -s -sp"/s"`
     `<Installation_package>\Standalone Applications\SetupOneLG.exe -s -sp"/s"`

   - To install additional components:

     `<Installation_package>\Additional Components\<setup_file_path> /s /a /s`

   Tip: See additional examples here: Examples

2. If you are installing an upgrade, run the following command:

   msiexec.exe /update <full path to msp file> [/qn] [/l*vx <full path to log file>]

   The msp files are located in the installation package.

3. After installation, if you have installed NV on load generators that have more than one network interface card, you must set the active adapter for each load generator. For details, see Customize NV settings.

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See also:

- Install components on Windows
- Prepare for installation

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