How do I make a WIX MSI always remove a previous version?

问题

I have CI build system builds an MSI whenever a developer checks in a change. We run automated acceptance tests on the installed MSI.

Basically every MSI is a complete install of the product, so we don't have any versioning (ala Windows installer) per se..

Each MSI has the same product GUID and upgrade GUID, and the same version number. but has a different package GUID (use '*' in wix).

What I want to achieve is that when the installer runs, it will 'uninstall' any previously installed version of the product, and install the new one.. all from a single MSI (We have a convoluted install process that is out of our control.. citrix and sccm, so we want to give them a simple install path)

I have tried:

<Property Id='PREVIOUSVERSIONSINSTALLED' Secure='yes' />
<Upgrade Id='$UPGRADE_GUID'>  
  <UpgradeVersion Minimum='1.0.0.0'
                  Maximum='99.0.0.0'
                  Property='PREVIOUSVERSIONSINSTALLED'
                  IncludeMinimum='yes'
                  IncludeMaximum='no' />
</Upgrade>

and have:

<InstallExecuteSequence>
  <RemoveExistingProducts After='InstallFinalize' />
</InstallExecuteSequence>

and have tried:

<InstallExecuteSequence>
  <RemoveExistingProducts After='InstallInitialize' />
</InstallExecuteSequence>

But when I try to install an msi from a subsequent build I get:

Another version of this product is already installed. Installation of this version cannot continue. 
To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.

Which is not really what I was going for..

I understand that I can just update the Version attribute in the product tag, but that becomes difficult to manage. Firstly I can produce 20+ msi builds a day as I have a number of build pipelines that produce MSIs and am not sure how to handle the version numbering in a way that makes sense.

Maybe Windows Installer just does not allow this type of 'always overwrite installed version' install?

回答1:

So I did find a way of doing it without changing the version number.

I change the Product GUID with every build, but keep the Upgrade GUID the same.

I also had to change the RemoveExistingProducts to Before='InstallInitialize'. Otherwise it left only the 'deltas' between builds in the install path.

As noted by Wim below, I can replace the generated Product GUID with '*'.

回答2:

You can use this code to remove the old version and install a newer one:

<Product Id="*"
         UpgradeCode="87795f3dc95-81f5-473e-955e-2871a5bd66a5"
         Name="AppName"
         Language="1033"
         Version="1.0.6"
         Manufacturer="Manufacturer Name">
  <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
  <MajorUpgrade Schedule="afterInstallInitialize"
                DowngradeErrorMessage="A later version of [ProductName] is already installed"
                AllowSameVersionUpgrades="yes" />
</Product>

回答3:

try

<InstallExecuteSequence>
  <RemoveExistingProducts After='InstallFinalize' />
</InstallExecuteSequence>

This should remove any existing products after the install is finalised though you could customize the point at which you do it

see http://mohundro.com/blog/2009/02/23/getting-started-with-wix-and-major-upgrades/

also see the accepted answer for this question

回答4:

If the product code and version are the same yet the package code is different, you will always get that Windows Installer error message.

I would strongly suggest including version information for your installers in your CI builds. If you are installing and subsequently upgrading each build, then versioning isn't a bad thing to have. It should be relatively easy to add this to a CI build.

来源：https://stackoverflow.com/questions/11732290/how-do-i-make-a-wix-msi-always-remove-a-previous-version

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wix

windows-installer

wix3.5