Tools/msi/exe/exe_reg.wxs

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <Fragment>
        <PropertyRef Id="ROOTREGISTRYKEY" />
        <PropertyRef Id="REGISTRYKEY" />
        
        <ComponentGroup Id="exe_reg">
            <Component Id="CommonPythonRegistration" Directory="InstallDirectory" Guid="$(var.CommonPythonRegComponentGuid)">
                <RegistryKey Root="HKMU" Key="[ROOTREGISTRYKEY]">
                    <RegistryValue Name="DisplayName" Type="string" Value="!(loc.Manufacturer)" KeyPath="yes" />
                    <RegistryValue Name="SupportUrl" Type="string" Value="!(loc.ManufacturerSupportUrl)" KeyPath="no" />
                </RegistryKey>
            </Component>
            <Component Id="PythonRegistration" Directory="InstallDirectory" Guid="$(var.PythonRegComponentGuid)">
                <RegistryKey Root="HKMU" Key="[REGISTRYKEY]">
                    <RegistryValue Name="DisplayName" Type="string" Value="!(loc.ShortcutName)" KeyPath="yes" />
                    <RegistryValue Name="SupportUrl" Type="string" Value="!(loc.SupportUrl)" KeyPath="no" />
                    <RegistryValue Name="Version" Type="string" Value="$(var.LongVersion)" KeyPath="no" />
                    <RegistryValue Name="SysVersion" Type="string" Value="$(var.ShortVersion)" KeyPath="no" />
                    <RegistryValue Name="SysArchitecture" Type="string" Value="$(var.PlatformArchitecture)" KeyPath="no" />
                </RegistryKey>
            </Component>
        </ComponentGroup>
    </Fragment>
</Wix>