[wix-users] Registry serach and numbers

John Cooper JoCooper at jackhenry.com
Thu Mar 3 13:03:05 PST 2016

The way I do it is I write a custom action to harvest the two pieces from the registry.  I then reassemble them using the Version() constructor to set a value with the custom action.  I take a property as input with the minimal version number.  It is also converted to a true Version() so I can use it's comparison semantics.  I then make the comparison and store a "#1" in a property if the version is greater than the minimum, or I clear the property otherwise.

John Merryweather Cooper
Senior Software Engineer | Integration Development Group | Enterprise Notification Service
Jack Henry & Associates, Inc.® | Lenexa, KS  66214 | Ext:  431050 |JoCooper at jackhenry.com

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of Ronny Eriksson
Sent: Thursday, March 3, 2016 2:58 PM
To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
Subject: [wix-users] Registry serach and numbers

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Hi all

I have this condition to see if the IIS version is higher the 7.
But I have 10 and it will not recognize it as a higher number, and there for is says that I don't have IIS7 or higher installed.

This is the wix code.
      <RegistrySearch Id="CheckIISVersion"

    <Condition Message="IIS must be installed of at least IIS 7 or higher.">
      <![CDATA[Installed OR (IIS_MAJOR_VERSION >= "#7")]]>

How do I solve this?
Can I convert the IIS_MAJOR_VERSION to an INTEGER or is there a better way to check the IIS version when the IIS version is higher then 9?
I understand why IIS_MAJOR_VERSION >= #7 is not true when IIS_MAJOR_VERSION is #10 since it's a string.

I'll take any idees.


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