how to fetch the .net runtime version from a client machine using wix bootstarper?

Question

my requirement is to check the latest .net runtime version in client machine so that i can compare weather the particular version is belong to .net 6 runtimes or not ,i have tried some few steps to achieve my requirement

<util:RegistrySearch Id="DotNetVersionSearch" Variable="DOTNETVERSION"
                     Root="HKLM"
                     Key="SOFTWARE\Wow6432Node\dotnet\Setup\InstalledVersions\x64\sharedfx\Microsoft.WindowsDesktop.App"
                     Value="Version"
                     Result="value" />

the paricular variable I have declared on top of fragement <Property Id="DOTNETVERSION" Secure="yes" />

and I have define one custom action to verify weather the .net runtime version is belong to .net 6 or not like below .

 <CustomAction  Id="CheckDotNetVersion"
                BinaryKey="CustomActionBinary"
                DllEntry="CheckDotNetVersion"
                Execute="immediate"
                Return="check" />

and the action i have defined in a class named as Customaction.cs

    [CustomAction]
    public static ActionResult CheckDotNetVersion(Session session)
    {
        string dotNetVersion = session["DotNetVersion"];
        string dotNetVersionMin = session["DotNetVersionMin"];

        Version version;
        Version versionMin;

        if (!Version.TryParse(dotNetVersion, out version))
        {
            session.Log("Failed to parse DotNetVersion.");
            return ActionResult.Failure;
        }

        if (!Version.TryParse(dotNetVersionMin, out versionMin))
        {
            session.Log("Failed to parse DotNetVersionMin.");
            return ActionResult.Failure;
        }

        int result = version.CompareTo(versionMin);

        session["WIX_DOTNET_VERSION_COMPARE"] = result.ToString();

        return ActionResult.Success;
    }

and for displaying the error I have used the bal:Condition tag like below

<bal:Condition
        Message="This setup requires Microsoft .NET 6.0 or above."
        ><![CDATA[Installed OR (NOT Installed AND WIX_DOTNET_VERSION_COMPARE >= 0)]]>
    </bal:Condition>

but this is not working , can somebody help me on this to fix the issue

Nikolay · Accepted Answer · 2023-07-03 11:25:35Z

3

Wix has a built-in support for .NET version check, you can use that:

https://wixtoolset.org/docs/tools/wixext/dotnet/#net-and-net-core

Wix 3.x does not seem to support .NET 6 detection out of the box (but I am not completely sure), but Wix 4 does, so you may need to upgrade.

To figure out what is not working with your code, you can run your installer with a log file (msiexec yourfile.msi /l*v log.txt), and check the values of your variables passed around in the log after run.

Other than that, not quite sure why you are using <bal:Condition>, it is for "bal", the bootstrapper (a program that runs before your installation starts). Custom actions are executed during the installation, not in a bootstrapper. So, there is no chance for this condition to work, as far as I can see?

answered Jul 3, 2023 at 11:25

Nikolay

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10 Comments

Aditya Dalai Over a year ago

HI @Nikolay, could you please suggest any way for detecting a .net 6 version of client machine using the wix 3.x(and is it possible to check the client .net 6 version in bootstrapper without using of this custom action) , because WiX 4 is not fully backward compatible with WiX 3.x so it difficult to predict all the custom action of my current setup will work there or not

Nikolay Over a year ago

It looks like there is a similar question: stackoverflow.com/questions/72518411/…. They recommend either use Wix4 directly, or use the method that is used by Wix4 (use the NetCoreCheck.exe)

Aditya Dalai Over a year ago

Hi @Nikolay , i went through the link that you suggested , so as per the link its good to port the wix v3.11 into wix v4 so could you please guide me how to port it , i mean the initial steps , which wix.exe to install and which visual studio extension to use or and tool is available to port it immediately ,

Nikolay Over a year ago

There is automatic conversion tool I guess? wixtoolset.org/docs/fourthree

Aditya Dalai Over a year ago

Hello @Nikolay , thank for the suggestion i am able to use the convert command , but after converting it to wix v4 while building I am getting the below error error CNDL0199: The Wix element has an incorrect namespace of 'wixtoolset.org/schemas/v4/wxs'. Please make the Wix element look like the following: <Wix xmlns="schemas.microsoft.com/wix/2006/wi">. i have followed this link github.com/wixtoolset/issues/issues/5967 but couldn't get a satisficed answer , could you please help me on this

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