Greenshot

Greenshot is a open-source screen capture utility available at http://getgreenshot.org/

Installation

Note that the installer from the website uses a dash in the version number (0.8.0-0627) and the file version uses a dot (0.8.0.0627) so you should rename the installer appropriately for consistency.

Also note that the uninstaller does not remove unins000.exe or the Greenshot folder, but this doesn't seem to cause any problems when reinstalling.

<package
  id="greenshot"
  name="Greenshot"
  revision="%version%"
  priority="0"
  reboot="false">

  <variable name="version" value="0.8.0.0627" />

  <check
    type="file"
    condition="versionequalto"
    path="%PROGRAMFILES%\Greenshot\Greenshot.exe"
    value="%version%" />
 
  <install cmd='"%SOFTWARE%\greenshot\Greenshot-INSTALLER-%version%.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' />

  <upgrade cmd='"%SOFTWARE%\greenshot\Greenshot-INSTALLER-%version%.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' />  

  <remove cmd='"%PROGRAMFILES%\Greenshot\unins000.exe" /SILENT'>
    <exit code="1" /> <!-- Returns 1 even when uninstall succeeds -->
  </remove>
</package>