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Prevent an Older Version from Installation

Santro's picture
Santro
October 13th, 2008
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Prevent older version installation over newer version. As MSI Technology doesn't support this kind of check, we can provide it by doing a few steps in our packages to prevent installing an older version on top of a newer version.

Use the upgrade table "Action Property" to find a newer version installed.

In the Upgrade table add a row with:

  • UpgradeCode - UpgradeCode value of the package.
  • VersionMin - min version of your package.
  • Attributes 258.
    Where
    • 2 - Detect products and applications but do not install and
    • 256 - The range of versions detected includes the value in VersionMin
  • ActionProperty - NEW_VERSION_INSTALLED (user defined property name).

Use of Custom Action type 19 to terminate installation based on the "Action
Property".

Custom Action type 19 displays an error message, returns a failure and terminates the installation.

Add a new Custom Action type 19 - Terminate installation called CA_NEW_VERSION_INSTALLED to the InstallExecuteSequence under Immediate Execution mode. Add your comments for the Termination message as the Custom Action Target value;

Click to view.

Set this custom action to have a condition of DB_NEWERVERSION AND NOT Installed.

Click to view.

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avherur's picture
avherur
46 weeks 5 days ago

More information

Nice article,

I want to add some more information to this article.

Attribute 2 implies : Detects Products & applications but does not remove.

I will also suggest that keep Custom action 19 after FindRelatedProducts action in the Execute Sequence.

This procedure relies on the "FindRelatedProducts" action, which only runs during a first time installation & does not run in maintenance mode i.e reinstallation. Because minor upgrade are performed using reinstallation, this procedure cannot be used to determine whether a minor upgrade package is attempting to downgrade an application.

Anand V Herur

AVHerur

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