This describes how to do it, but I don't know how (or if) it shows up an MSI log:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa371614(v=vs.85).aspx and scroll down to INSTALLMESSAGE_COMMONDATA. -----Original Message----- From: Rob Hamflett [mailto:rob_hamfl...@sn.scee.net] Sent: Monday, June 11, 2012 12:34 AM To: wix-users@lists.sourceforge.net Subject: Re: [WiX-users] Installer ignores cancellation Hi Rob, On 08/06/2012 16:25, Rob Mensching wrote: > Custom actions can swallow the cancel message. If you look at the WiX > toolset's custom actions, we have wrappers for most of the MSI APIs > and in those wrappers, special handling ifa cancel is sent back. If > you have an install with custom actions where the cancel button is > being lost, this is often the issue. Thanks, I'll download the source and poke around. > > The other issue is the Windows Installer may have sent the "Disable > Cancel button" message already. Clicking cancel after that point, of > course, has no effect. Is there any documented info about this? Is there anything I can look up on MSDN or search for in the log? Thanks, Rob > > On Fri, Jun 8, 2012 at 6:39 AM, Rob Hamflett<rob_hamfl...@sn.scee.net>wrote: > >> I'm seeing a strange issue where it looks like I can't cancel an >> installation during the last action before InstallFinalize in the >> InstallExecuteSequence. >> >> I have two deferred custom actions for updating VS 2008 and 2010 >> (running "devenv /setup /nosetupvstemplates") and they are scheduled >> immediately before InstallFinalize. >> >> When I see the progress text for the 2008 action I cancel the >> installation. The 2008 action takes some time to run so the >> installer continues to show this text for a bit until it eventually >> rolls back and aborts the installation. If I do the same thing >> during the 2010 setup, (which comes after the 2008 action and is the >> last thing before >> InstallFinalize) then the cancel dialog still shows as normal, but >> this time the installer will run to completion. >> >> I re-ran the installer and opted not to install the 2010 support, so >> the >> 2010 action won't run. This time when I cancel during the 2008 >> action, the installer waits for the 2008 action to complete but this >> time the installation completes instead of rolling back. >> >> Does anyone have any insight into what's going on? >> >> Thanks, >> Rob >> >> >> >> --------------------------------------------------------------------- >> --------- >> Live Security Virtual Conference >> Exclusive live event will cover all the ways today's security and >> threat landscape has changed and how IT managers can respond. >> Discussions will include endpoint security, mobile security and the >> latest in malware threats. >> http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >> _______________________________________________ >> WiX-users mailing list >> WiX-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/wix-users >> > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. 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