I'm just making sure I verify all possibilities to show a UI and capture my design decision in the doc...
1. UI in the bootstrapper exe itself - I'm currently thinking this is the most feasible solution. 2. UI as msi external UI - As we discussed, problems with writing back properties to the MSI. 3. UI in msi embedded UI - I need to compatible with Windows Installer 3.1, so this is not an option for me. 4. UI in UI Sequence - My UI should host a WebBrowser control, so the MSI dialogs are not an option for me. 5. UI in immediate custom action in InstallExecute sequence - This is probably another option available to me apart from option 1. The UI launches as logged in user, I'll be able to write back to the msi. But I'm not sure if I should be doing the UI work in this place because the custom action, eventhough running as logged in user, is running with Integrity Level High and Elevation Type Full(applicable on Vista+). Since the UI is going to navigate to a website, this is not secure. Once the process is elevated, there is no way to go back to non-elevated mode. 6. UI in deferred custom action - The new process that my UI launches is launching as LocalSystem and I'm not able to launch it as logged in user. So the security issue is pulling me back from going with this approach. So what you suggested above(collect data in your own UI and set the properties on command line) is my option 1. Please correct me if any of my above statements are wrong. Thanks, Pratap. On Wed, Sep 15, 2010 at 5:08 PM, Wilson, Phil <[email protected]>wrote: > That's correct, it will have started, but if you're following a model where > you collect data in your own UI and start the install you have an > opportunity to set the properties on the install command line. I don't see > why you would try to set properties from your callback - it seems > non-deterministic to me. Also you can't really show a UI there and expect to > support a silent install. > > Phil Wilson > > > -----Original Message----- > From: Pratapa Reddy Sanaga [mailto:[email protected]] > Sent: Wednesday, September 15, 2010 4:28 PM > To: General discussion for Windows Installer XML toolset. > Subject: Re: [WiX-users] Can msi external ui write to the MSI properties? > > The install would have already started if my external UI is being executed > right? i.e. the callback would occur only after I call the InstallProduct > API from my bootstrapper exe, so I don't have any more chance of passing in > a command line argument I guess. > > I'll try using the context to set the property and get back on this > thread.. > > Thanks! > On Wed, Sep 15, 2010 at 4:15 PM, Wilson, Phil <[email protected] > >wrote: > > > If you haven't started the install yet, you could pass those properties > on > > the command line. Alternatively, the first parameter in the UIHandler > > callback ("context") is (can be cast to) the MSIHANDLE for the install. > The > > example callback in MSDN casts it to an MSIHANDLE when it calls > > MsiFormatRecord(). I've never tried an MsiSetProperty() on it though. > > > > > > Phil Wilson > > > > -----Original Message----- > > From: Pratapa Reddy Sanaga [mailto:[email protected]] > > Sent: Wednesday, September 15, 2010 3:53 PM > > To: General discussion for Windows Installer XML toolset. > > Subject: [WiX-users] Can msi external ui write to the MSI properties? > > > > Hi, > > > > I'm trying to see if I can use msi external ui for my project. Will I be > > able to get an input from the user using msi external ui and then store > > that, lets say string, input from the user into one of the msi > properties? > > I > > feel it can't be done because the external ui would probably be running > in > > a > > separate process and it wouldn't have any handle to the currently running > > msi to set the property. 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