wpkg-thunderbird/packages/thunderbird.xml

<?xml version="1.0" encoding="UTF-8"?>
<packages>
    <package id="thunderbird"
             name="Mozilla Thunderbird"
             revision="58"
             reboot="false"
             priority="10">
 
        <variable name="PKG_VERSION" value="45.5.1" />
        <variable name="VARIANTE" value="" />
        <variable architecture="x86" name="INSTALL_PATH" value="%PROGRAMFILES%\Mozilla Thunderbird" />
        <variable architecture="x64" name="INSTALL_PATH" value="%PROGRAMFILES(x86)%\Mozilla Thunderbird" />

        <check type="uninstall" condition="versiongreaterorequal" path="Mozilla Thunderbird .+" value="%PKG_VERSION%"/>

        <install cmd='"%SOFTWARE%\thunderbird\Thunderbird Setup %PKG_VERSION%%VARIANTE%.exe" -ms' />
        <!-- Remove the bundled Lightning -->
        <install cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\distribution\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}" del /Q /F "%INSTALL_PATH%\distribution\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}"' />

        <upgrade cmd='taskkill /F /IM thunderbird.exe'>
            <exit code="0" />
            <exit code="128" />
        </upgrade>

        <upgrade include="install" />

        <downgrade include="upgrade" />

        <remove cmd='taskkill /F /IM thunderbird.exe'>
            <exit code="0" />
            <exit code="128" />
        </remove>

        <remove cmd='"%INSTALL_PATH%\uninstall\helper.exe" /S' />
    </package>
</packages>