Silent Scalyr Agent install in Windows

You can install the Scalyr Agent silently (via its .msi package) in Windows with the following commands:

Command Prompt

msiexec /i "ScalyrAgentInstaller-X.Y.Z.msi" /QN /L*V "C:\scalyr_install.log"

The options are as follows:

/i :: Installs or configures a product.
/QN :: silent (no UI)
/L*V "C:\scalyr_install.log" :: verbosely log to the specified file

PowerShell

This is similar in function to the command prompt option above

Start-Process C:\Windows\System32\msiexec.exe -ArgumentList "/i C:\Users\Administrator\Downloads\ScalyrAgentInstaller-X.Y.Z.msi /l*v C:\scalyr_install.log /qn" -wait