That's about what I figured. Thanks for the confirm! -- DaĆ­

-----Original Message-----
From: Bob Arnson [mailto:b...@joyofsetup.com] 
Sent: Wednesday, January 28, 2009 12:04 PM
To: General discussion for Windows Installer XML toolset.
Subject: Re: [WiX-users] How can I substitute a custom action for a dialog? 
(was Re:Modify behavior of tree selection control?)

Corry, Davidson wrote:
> I need to substitute a call out to an .exe for a WiX dialog. 
>
> Specifically, where I would normally be using CustomizeDlg.wxs in the dialog 
> chain, I want instead to invoke the .exe. Based on the return code from the 
> .exe, I want to either go back to the previous dialog, forward to the next 
> dialog, or cancel the installation. That is, the rest of the dialog chain 
> should not know or care that I'm stepping outside of "real" MSI dialogs.
>   

There's no support in MSI for capturing a custom action's exit code. You 
can write the UI in a DLL custom action instead, and have it set 
properties. Forewarned: You'll run into complications because the 
"previous" dialog will be visible and "running" while your CA is 
running. At a certain point, you might find it easier to write an 
external UI handler and handle the whole UI in custom code.

-- 
sig://boB
http://joyofsetup.com/



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