Question

I have a WiX file that includes this snippet:

<CustomAction Id="DownloadCache" FileKey="CACHEDOWNLOADER.EXE" ExeCommand="/v" Execute="deferred" Return="ignore"/>
<UI>
    <Dialog Id="ExitDialog" Title="Product Installer" Height="60" Width="250">
        ...

    </Dialog>
    <Dialog Id="FatalErrorDialog" Title="Product Installer" Height="60" Width="250">
        ...
    </Dialog>
    <TextStyle Id="DefaultFont" FaceName="Arial" Size="10" />
    <Property Id="DefaultUIFont" Value="DefaultFont" />
    <InstallUISequence>
        <Custom Action="DownloadCache" After="ExecuteAction">(NOT Installed) AND (Not REMOVE)</Custom>
        <Show Dialog="ExitDialog" OnExit="success" />
        <Show Dialog="FatalErrorDialog" OnExit="error" />
    </InstallUISequence>
</UI>
<InstallExecuteSequence>
    <Custom Action="DownloadCache" After="WriteRegistryValues">(NOT Installed) AND (Not REMOVE)</Custom>
</InstallExecuteSequence>

The issue is, the resulting .MSI does NOT contain an InstallUISequence table.

I went through the tutorial Events and Actions and the above seems correct. I’m definitely missing something here. How can I fix it?

Answer 1

There must be more than meets the eye here. Even the simplest fragment below will generate an InstallUISequence table with the bare minimum actions of ValidateProductID, CostInitialize, FileCost, CostFinalize and ExecuteAction. No actual UI elements per se, but that’s another issue…. (Are Dialogs Optional Now??)

<Wix...>
    <Product...>
        <Package.../>
    </Product>
</Wix>