If the product was installed with an MSI-based InstallShield solution then your
first approach was the correct one, and if so you should be trying to figure
out why the upgrade failed. Your custom action solution will not work in the
execute sequence, and is not the right thing to do if the original install is
MSI based. A major upgrade should work fine.
If the InstallShield setup is non-MSI, the kind of thing you can do is a custom
action in the UI sequence to uninstall the older product using the
uninstallstring, and a LaunchCondition in the execute sequence based on the
presence of the UninstallString so you can prevent a silent install from
installing on top of the old product.
Phil Wilson
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of V K Gangwar
Sent: Wednesday, March 05, 2008 9:45 AM
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Old Installshield upgrade / Remove using MSI Installer
Guys,
I developed a MSI installer (WiX) for a product was installed through
InstallShield installer. I want when I install through MSI installer it should
upgrade/ remove the old InstallShield. I tried to upgrade but no success. Then
I wrote a custom action in which I am calling a script which removes old
installshield. I want to run this script before copying new installer files. My
problem is I can't call "deferred (in-script)" custom action before
"InstallInitialize" custom action. If I change my cutom action to non deferred
(immediate or other..). custom action doesn't execute.
How I can fix this issue...
Regards,
Vk
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