Tools/msi/launcher/launcher.wxs

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <Product Id="*" Language="!(loc.LCID)" Name="!(loc.Title)" Version="$(var.Version)" Manufacturer="!(loc.Manufacturer)" UpgradeCode="$(var.UpgradeCode)">
        <Package InstallerVersion="500" Compressed="yes" InstallScope="perUser" />
        <MediaTemplate EmbedCab="yes" CompressionLevel="high" />

        <Property Id="Suppress_TARGETDIR_Check" Value="1" />
        <Icon Id="ARPIcon" SourceFile="!(bindpath.src)PC\icons\launcher.ico" />
        <Property Id="ARPPRODUCTICON" Value="ARPIcon" />
        <Property Id="ARPNOMODIFY" Value="1" />
        <Property Id="DISABLEADVTSHORTCUTS" Value="1" />

        <Property Id="ARM64_SHELLEXT">
            <ComponentSearch Id="RegistrySearch_ARM64_SHELLEXT_Detected"
                             Guid="{C591963D-7FC6-4FCE-8642-5E01E6B8848F}" />
        </Property>

        <Feature Id="DefaultFeature" AllowAdvertise="no" Title="!(loc.Title)" Description="!(loc.Description)">
            <ComponentGroupRef Id="launcher_exe" Primary="yes" />
        </Feature>
        <Feature Id="AssociateFiles" AllowAdvertise="no" Title="!(loc.Title)" Description="!(loc.Description)">
            <ComponentGroupRef Id="launcher_exe" />
            <ComponentGroupRef Id="launcher_reg" />
        </Feature>

        <Directory Id="TARGETDIR" Name="SourceDir">
            <Directory Id="LauncherInstallDirectory" />
        </Directory>

        <CustomAction Id="SetLauncherInstallDirectoryLM" Property="LauncherInstallDirectory" Value="[WindowsFolder]" />
        <CustomAction Id="SetLauncherInstallDirectoryCU" Property="LauncherInstallDirectory" Value="[LocalAppDataFolder]Programs\Python\Launcher" />

        <InstallExecuteSequence>
            <Custom Before="SetLauncherInstallDirectoryLM" Action="SetLauncherInstallDirectoryCU">NOT Installed AND NOT ALLUSERS=1</Custom>
            <Custom Before="CostFinalize" Action="SetLauncherInstallDirectoryLM">NOT Installed AND ALLUSERS=1</Custom>

            <?if $(var.UpgradeMinimumVersion)="3.11.0.0" ?>
            <RemoveExistingProducts After="InstallValidate">UPGRADE or REMOVE_350_LAUNCHER or REMOVE_360A1_LAUNCHER or UPGRADE_3_11_0 or UPGRADE_3_11_1</RemoveExistingProducts>
            <?else ?>
            <RemoveExistingProducts After="InstallValidate">UPGRADE or REMOVE_350_LAUNCHER or REMOVE_360A1_LAUNCHER</RemoveExistingProducts>
            <?endif ?>
        </InstallExecuteSequence>

        <?if $(var.UpgradeMinimumVersion)="3.11.0.0" ?>
        <Condition Message="!(loc.NoDowngrade)">Installed OR NOT DOWNGRADE OR UPGRADE_3_11_0 OR UPGRADE_3_11_1</Condition>
        <?else ?>
        <Condition Message="!(loc.NoDowngrade)">Installed OR NOT DOWNGRADE</Condition>
        <?endif ?>

        <!-- Upgrade all versions of the launcher -->
        <Upgrade Id="$(var.UpgradeCode)">
            <UpgradeVersion Property="DOWNGRADE" Minimum="$(var.Version)" IncludeMinimum="no" OnlyDetect="yes" />
            <UpgradeVersion Property="UPGRADE" Minimum="0.0.0.0" IncludeMinimum="yes" Maximum="$(var.Version)" IncludeMaximum="no" />
            <!--
            Prior to 3.11.2150, version numbers incorrectly used date-based
            revision numbers in the third field. Because these are higher than
            the real version, it prevents upgrades.
            Releases of 3.10 have a similar issue, however, no significant
            changes have shipped in the launcher, so we don't worry about it.
            -->
            <?if $(var.UpgradeMinimumVersion)="3.11.0.0" ?>
            <UpgradeVersion Property="UPGRADE_3_11_0" Minimum="3.11.7966.0" IncludeMinimum="yes" Maximum="3.11.7966.0" IncludeMaximum="yes" />
            <UpgradeVersion Property="UPGRADE_3_11_1" Minimum="3.11.8009.0" IncludeMinimum="yes" Maximum="3.11.8009.0" IncludeMaximum="yes" />
            <?endif ?>
        </Upgrade>
        <!-- Python 3.5.0 shipped with a different UpgradeCode -->
        <Upgrade Id="A71530B9-E89D-53DB-9C2D-C6D7551876D8">
            <UpgradeVersion Minimum="0.0.0.0" Property="REMOVE_350_LAUNCHER" />
        </Upgrade>
        <!-- Python 3.6.0a1 shipped with a different UpgradeCode -->
        <Upgrade Id="394750C0-7880-5A8F-999F-933965FBCFB4">
            <UpgradeVersion Minimum="0.0.0.0" Property="REMOVE_360A1_LAUNCHER" />
        </Upgrade>
    </Product>
</Wix>