问如何使用WiX / Burn安装后开始应用程序？

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
     xmlns:bal="http://schemas.microsoft.com/wix/BalExtension"
     xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">

    <Bundle Name="My Company AutoUpdater"
            Version="1.0.11"
            Manufacturer="My Company"
            UpgradeCode="--GUID--">

        <BootstrapperApplicationRef Id="WixStandardBootstrapperApplication.HyperlinkLicense">

            <bal:WixStandardBootstrapperApplication SuppressOptionsUI="yes"
                                                    LicenseUrl=""
                                                    LogoFile="logo.png" />
        </BootstrapperApplicationRef>

        <Chain>
            <MsiPackage SourceFile="..\App1\bin\Release\App1.msi" />
            <MsiPackage SourceFile="..\App2\bin\Release\App2.msi" />
        </Chain>
    </Bundle>

    <Fragment>
        <Property Id="WixShellExecTarget" 
                  Value="[#C:\Program Files (x86)\My Company\App1.exe]" />

        <Binary Id="MyCA"
                SourceFile="[#C:\Program Files (x86)\My Company\App1.exe]"/>

            <CustomAction Id="LaunchApplication"
                          BinaryKey="MyCA"
                          ExeCommand="-switch"
                          Execute="deferred"
                          Return="check"
                          HideTarget="no"
                          Impersonate="no" />

            <InstallExecuteSequence>
                <Custom Action="LaunchApplication" 
                        After="InstallFiles" />
            </InstallExecuteSequence>
    </Fragment>
</Wix>