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='404' priority='50' reboot='false' >
  <!-- Win-Secure-Copy -->
  <check type='uninstall' condition='exists' path='WinSCP 4.0.4' />
  <install cmd='cmd /C copy /Y "%SOFTWARE%\WinSCP v.4.0.4\default.inf" "%TEMP%"' />
  <install cmd='"%SOFTWARE%\WinSCP v.4.0.4\winscp404setup.exe" /VERYSILENT /NORESTART /LOADINF="%TEMP%\default.inf"' />
  <install cmd='cmd /C del "%TEMP%\default.inf"' />
  <remove cmd='"%ProgramFiles%\WinSCP\unins000.exe" /SILENT' />
  <upgrade cmd='cmd /C copy /Y "%SOFTWARE%\WinSCP v.4.0.4\default.inf" "%TEMP%"' />
  <upgrade cmd='"%SOFTWARE%\WinSCP v.4.0.4\winscp404setup.exe" /VERYSILENT /NORESTART /LOADINF="%TEMP%\default.inf"' />
  <upgrade cmd='cmd /C del "%TEMP%\default.inf"' />
</package>

</packages>

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

winscp404setup.exe /SAVEINF="default.inf"

WinSCP 3

This is a silent installer and uninstaller for WinSCP.

<package id="winscp3" name="WinSCP (SCP/SSH client)" revision="1" 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>