>From the sound of it you would actually have to do some custom work
around the modify scenario. You don't want to install the actual bits
more than once, correct?
Sent from my Windows Phone From: CoolBreeze
Sent: Thursday, June 23, 2011 6:55 AM
To: General discussion for Windows Installer XML toolset.
Subject: [WiX-users] Issue with MajorUpdate Element
As I understand from the Wix docs that when the MajorUpdate element is used
with the attribute AllowSameVersionUpgrades="no" that I should be able to
run my installer a second time and the new installation would be treated by
MSI as a new product independent from the previous one. I'm not finding this
to be the case though.
I have an installer that I'm trying to get to work in this manner, without
going the route of "Multiple Instances". I really don't understand that to
well and from what I've read it's not a straightforward process anyway.
My installer installs a web application under the Virtual Directory I
specify within the UI. What I'm trying to do is run the installer specify
the virtual directory for the install, then run the installer again and
specify a different virtual directory for this new install. The reason for
this is to support multiple brands.
What happens is when I run the installer a second time it's just upgrading
the previous install and not installing this as a new installation.
Here is a snippet of my Product.wxs.
<Product Id="*"
Name="!(loc.ProductName)"
Language="!(loc.LANG)"
Version="1.0.4.0"
Manufacturer="!(loc.CompanyName)"
UpgradeCode="6CA6DCE8-7A1F-427F-B2A5-44D416B5AD14">
<Package InstallerVersion="405"
Compressed="yes"
Manufacturer="!(loc.CompanyName)"
Description="!(loc.Description)"
Keywords="!(loc.Keywords)"
Comments="!(loc.CompanyName)" />
<Property Id="PREVIOUSVERSIONINSTALLED" Secure="yes" />
<Upgrade Id="6CA6DCE8-7A1F-427F-B2A5-44D416B5AD14">
<UpgradeVersion
Property="PREVIOUSVERSIONINSTALLED"
Minimum="!(loc.ProductMinVersion)"
Maximum="!(loc.ProductMaxVersion)"
IncludeMaximum="no"
IncludeMinimum="yes"
OnlyDetect="no"
IgnoreRemoveFailure="no"
MigrateFeatures="yes"
Language="1033" />
</Upgrade>
ConditionCheck.wxi.
<MajorUpgrade AllowSameVersionUpgrades="no" DowngradeErrorMessage="Can't
downgrade."/>
This is referenced within the docs.
http://wix.sourceforge.net/manual-wix3/wix_xsd_majorupgrade.htm
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