Hello,

the command to install it silently if you have the MSI is MSIEXEC.EXE /I <the msi file> /qn /norestart ALLUSERS=2

But there is a problem: if the software was never installed before on the machine  ( >= Vista) the silent installation will not be totally silent due to the fact that the installer want to deploy a device driver signed by SonicWall.

I read on a blog that is possible to contact SonicWall and get a certificate file to deploy to all the computer where you will deploy the SonicWall NetExtender before to deploy it.

Deploying that certificate the OS will not ask the user intervention to approve the installation of the device driver and your installer will really run silently.

 Kind regards,

Marco - StockTrader

- See more at: http://www.itninja.com/question/sonicwall-netextender-silent-install#answer-90215

MSIEXEC.EXE /I <the msi file> /qn /norestart ALLUSERS=2

If you never installed this software before (>=Vista ) the OS will ask you if you want to install a device driver.

It seems that SonicWall may give you a certificate file to deploy previusly to all the machines to trust the signature of the device driver to avoid that the OS will ask you to confirm the driver installation.

 Marco - stockTrader