GNUplot

Below is the silent installer and uninstaller for GNUplot that will install GNUplot with default settings. To install with customised settings, use the /SAVEINF and then /LOADINF switches on the setup executable.

The GNUplot Windows installer is packaged with InnoSetup and can accept any of the Inno switches described here.

<package id="gnuplot" name="GNUPlot" revision="2" priority="0" reboot="false">
  
  <variable name="version" value="4.6.0" />
  <variable name="file_version" value="460" />
  
  <check type="uninstall" condition="exists" path="gnuplot %version%" />
  
  <install cmd='"%software%\gnuplot\gp%file_version%-win32-setup.exe" /VERYSILENT /SUPPRESSMSGBOXES' />
  
  <upgrade include="remove"/>
  <upgrade include="install"/>
  
  <remove cmd='"%ProgramFiles(x86)%\gnuplot\unins000.exe" /VERYSILENT /SUPPRESSMSGBOXES' >
   <exit code="any" />	
  </remove>
 
</package>