WiX Change product name conditionally - wix

Question

I have a large .wxs file and a requirement to change the Product Name from MyApp Workstation version to MyApp Server version when the installer is launched on a Windows Server operating system. I read a lot and I found out that I need to relate to the following MSI property MsiNTProductType which returns the value 1 for workstation and 2 or 3 for server operating systems.
<?xml version="1.0" encoding="UTF-8"?>
<?define ProductName = "MyApp Workstation version" ?>
<Wix>
<Product Name="$(var.ProductName)" ... >
...
</Product>
</Wix>
If I use a condition like the following, it detects that I am on a workstation operating system (in my case Windows 10), but this is not what I want:
<Condition Message="This installer is for Windows Server only!">
<![CDATA[(MsiNTProductType > 1)]]>
</Condition>
I tried the preprocessor variable approach, but evidently it does not work:
<?if MsiNTProductType = 1 ?>
<?define ProductName = "MyApp Workstation version" ?>
<?else ?>
<?define ProductName = "MyApp Server version" ?>
<?endif ?>
I also tried SetProperty and CustomAction without any luck. I am stuck at this.
Is it possible to do something like this? What changes do I have to make to accomplish this? I am very new to WIX and I do not understand how it is supposed to work. Thank you.
LATER EDIT AND SOLUTION
After many days of trying tens of combinations, I was able to do this with the following code which I put before any CustomActions that were already defined:
<Property Id="ConditionalProductName" Value="MyApp Workstation version" />
<SetProperty Id="ConditionalProductName" Before="LaunchConditions" Value="MyApp Server version" >
<![CDATA[(MsiNTProductType > 1)]]>
</SetProperty>
<SetProperty Id ="ProductName" Before ="LaunchConditions" Value ="[ConditionalProductName]"/>
I hope this may help others too. Good luck.

Answer 1

The ProductName property can only be changed prior to the installation starting. Once MSI is running it's immutable.
The preprocessor statements you are trying effect build time not installation time.
The only way to do what you want is create a transform with the different name and then use a bootstrapper to install the MSI without a transform on a non server OS and install the MSI with a transform on a server OS.
Personally this isn't typical practice so I would push back on the requirement from the PM. The only reason I would go through the effort would be the business really really differentiated the branding on the marketing side. Otherwise this just isn't normally done.