Looks like a bug to me. It should wait for your response.
> Date: Thu, 8 Aug 2013 14:26:38 +0200
> From: ihorovets...@sdl.com
> To: wix-users@lists.sourceforge.net
> Subject: [WiX-users] Burn: MSI-Bundle message interaction
>
> Hi there.
>
> I'm trying to communicate with bundle BA from MSI custom action code on C#.
> So far no luck:
>
> var result = session.Message(InstallMessage.Error +
> (int)MessageButtons.RetryCancel, new Record(1) {FormatString = "Choose Try or
> Cancel."});
>
> My BA handles message in Error handler and receives e.UIHit=5, which is
> correct. The problem is that process is not stopped at session.Message method
> and it returns immediately with Result.None without waiting Error handler to
> finish. Taking in account that bundle engine does properly handle standard
> error messages like "Failed to start service", general error messages etc., I
> assume that it has something to do with using external bundle UI.
>
> Can anyone tell me how to properly set up this kind of MSI-Bundle
> communication? Thx in advance,
>
>
>
>
>
> Best, Ihor.
>
>
>
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