WinSCP

WinSCP 4

Use the following XML file for silent installation:

<?xml version="1.0" encoding="utf-8"?>

<packages>
  <package
    id='WinSCP'
    name='WinSCP'
    revision='406'
    priority='0'
    reboot='false'>
  
    <check type='uninstall' condition='exists' path='WinSCP 4.0.6'/>

    <install cmd='%SOFTWARE%\winscp\winscp406setup.exe /VERYSILENT /NORESTART /LOADINF="%SOFTWARE%\winscp\default.ini"'/>

    <upgrade cmd='%SOFTWARE%\winscp\winscp406setup.exe /VERYSILENT /NORESTART /LOADINF="%SOFTWARE%\winscp\default.ini"'/>

    <remove cmd='"%ProgramFiles%\WinSCP\unins000.exe" /VERYSILENT'/>

  </package>
</packages>

It is using InnoSetup. The installation is described on their Homepage. Basically you need to execute

winscp406setup.exe /SAVEINF="default.inf"

WinSCP 3

This is a silent installer and uninstaller for WinSCP.

<?xml version="1.0" encoding="utf-8"?>

<packages>
  <package
    id="winscp3"
    name="WinSCP v3"
    revision="3560"
    priority="0"
    reboot="false">

    <check type="uninstall" condition="exists" path="WinSCP 3.5.6"/>

    <install cmd='%SOFTWARE%\winscp\winscp356setup.exe /sp- /silent /norestart'/>

    <remove cmd='"%PROGRAMFILES%\WinSCP3\unins000.exe" /sp- /silent /norestart'/>

  </package>
</packages>