1. Uhh, the ProductCode Property.
2. The Properties you specify in your UpgradeVersion will be setup based on
what the upgrade is doing. The MSI SDK has more details about this.
3. Yeah, that sounds right. The MSI SDK talks about it more.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brian Patton
Sent: Friday, December 29, 2006 18:07
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Getting ProductCode when auto-generated
I use ProductCode ????????-????-????-????-???????????? (auto-generated) for my
installer, with a constant UpgradeCode so that upgrades are performed fairly
seamlessly. A few questions about the upgrade process.
1) I want to write a regkey that tells other apps how to uninstall my app. The
command should look something like "msiexec /q /x{__MY_PRODUCT_CODE__}". Is
there any variable or property where I can find out what the ProductCode is if
it was auto-generated?
2) Is there any way for the upgrading installation to perform actions (such as
getting values from registry, filesystem, etc) before the previous version is
uninstalled by RemoveExistingProducts?
<Upgrade Id='$(var.AppUpgradeCode)'>
<UpgradeVersion IgnoreRemoveFailure="no"
IncludeMaximum="yes"
Maximum="$( var.AppProductVersion)"
MigrateFeatures="yes"
Property="APP_UPGRADE" />
</Upgrade>
<InstallExecuteSequence>
<RemoveExistingProducts
After="InstallValidate">APP_UPGRADE</RemoveExistingProducts>
</InstallExecuteSequence>
<Property Id="RemovePreviousVersions" Value='True' />
<Property Id="DetectNewerInstalledVersion" Value='True' />
3) My understanding is that the UPGRADINGPRODUCTCODE variable will tell an
uninstalling MSI what product code is causing its uninstall. Is this correct?
Thanks!
--
===========
Brian Patton
http://people.bu.edu/bjp/
http://people.bu.edu/reallife/ourstories.html
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