CODEWITHSUNDEEP
wix
andyopayne
andyopayne

Reputation: 1368

WIX Conditional Message on Exit

I have a WIX installer which I need to also install the VC++ 2015 runtime executable. I'm using the vcredist_x64.exe as opposed to the merge modules (see this thread). I can successfully launch the vcredist_x64.exe after my msi finishes installing my application by using a custom action... however, what I'd like to do is first check to see if the runtime files already exist. If they do, then I'll just finish without running the vcredist_x64.exe. Otherwise, I'll run the custom action to install the runtimes as well.

It took some digging, but I was able to find out that the 2015 runtimes have a registry key shown below:

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64

with an Installed value of 1 if they exist.

So, in my .wxs file I have the following registry search:

<!-- Visual C++ 2015 x64 -->
<Property Id="VCREDISTRUNTIMES2015INSTALLED">
  <RegistrySearch Id="VCREDISTRUNTIMES2015SEARCH" Root="HKLM" Key="SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64" Name="Installed" Type="raw" />
</Property>

Now, what I'd like to do is show a message on my exit dialog which says that if the runtimes aren't detected, then it will launch an installer to install them upon exit. Something like this:

<Property Id="WIXUI_EXITDIALOGOPTIONALTEXT" Value="Visual C++ Redistributable for Visual Studio 2015 is Required. Installation will proceed on exit.">
  <Condition>VCREDISTRUNTIMES2015INSTALLED</Condition>
</Property>

However, this doesn't work. I get an error on the conditional tag and the project wont build. Assuming my registry search is setup correctly, can someone tell me how to properly add a conditional message on my exit dialog? Thanks!

Upvotes: 2

Views: 812

Answers (1)

andyopayne
andyopayne

Reputation: 1368

Answering my own question... but here goes. It turns out that my registry search was just fine... but I needed to use "SetProperty" instead. So, something like this:

<SetProperty Id="WIXUI_EXITDIALOGOPTIONALTEXT" After="AppSearch" Value="The Visual C++ Redistributable Package for Visual Studio 2015 is Required. Installation will now install run-time components that are required to run C++ applications built using Visual Studio 2015.">
  NOT VCREDISTRUNTIMES2015INSTALLED
</SetProperty>

Now, if the VCREDISTRUNTIMES2015INSTALLED is null (or false) then it will show the message on the exit dialog. Otherwise, there will be no message shown. Hope that helps.

Upvotes: 2

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