Wix Toolset version 5 with Managed BootstrapperApplication (created in .NET Framework 4.8) mbanative payload issue

[harshmodhiya]

We have a Managed Bootstrapper Application with the below version:

• MBA - .NET Framework 4.8.1 (Platform Any CPU)
• WiX toolset - 5 (Platform x86)

Here's the scenario in our application:
I want to add 2 mbanative.dll payloads as per the platform:
<Payload SourceFile="$(var.UI.TargetDir)runtimes\win-x64\native\mbanative.dll" /> <Payload SourceFile="$(var.UI.TargetDir)runtimes\win-x86\native\mbanative.dll" />

But I can't because of the below error:
Error (active) WIX8002 The Payload 'pay7TUh8xmtuMGYxpvZ2DTsOj3qwks' has a duplicate Name 'mbanative.dll' in the BA container. When extracting the container at runtime, the file will get overwritten.

If I use $(var.Platform), it takes 1 payload in the executable file at a time. So, it will not work with different platforms.
Need help with the below,

• How can we manage both platform's DLL in 1 executable?

[robmen]

Why?

[harshmodhiya]

Reason behind this is "When an executable runs on a 32-bit PC, it requires a 32-bit mbnative dll; on a 64-bit PC, it requires a 64-bit one."

[robmen]

When an executable runs on a 32-bit PC, it requires a 32-bit mbnative dll; on a 64-bit PC, it requires a 64-bit one.

That's not how DLLs work. DLLs need to match the architecture of the executable that loads them.