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POC# custom action in Wix
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  1. POC# custom action in Wix
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    copied!<p>When my application is uninstalled, the server needs to be notified so that it can free up the license key assigned to the client. This is done via a web service call. </p> <p>I created a C# custom action that does this. The problem is, the uninstaller is quitting saying that it couldnt find a dll. </p> <p>The error log for the msi contains the following error:</p> <blockquote> <p>Error 1723. There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor. Action ReadLicenseKeyFromFile, entry: ReadLicenseKey, library: C:\Windows\Installer\MSI4F42.tmp</p> </blockquote> <p>I have the function ReadLicenseKey marked as a custom action. The custom action is named ReadLicenseKeyFromFile. </p> <pre><code>&lt;Custom Action="ReadLicenseKeyFromFile" After="InstallInitialize"&gt; REMOVE~="ALL" AND NOT UPGRADINGPRODUCTCODE &lt;/Custom&gt; &lt;CustomAction Id="ReadLicenseKeyFromFile" BinaryKey="UnInstallCA.CA.dll" DllEntry="ReadLicenseKey" Execute="immediate" Return="check" /&gt; &lt;Binary Id="UnInstallCA.CA.dll" SourceFile="$(var.UnInstallCA.TargetDir)UnInstallCA.CA.dll" /&gt; </code></pre> <p>The custom action project is outputting the .CA.dll file. I have tried installing the file as a part of the setup, manually copy pasted the file, done nothing to the file... basically tried all possible combinations.</p> <p>There must be something that I am missing, so please help.</p>
 

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