Visual c++ merge modules

Bevan Thomas 40

From where can I get the v143 visual c++ merge modules for x64.I found it in Program Files\Microsoft Visual Studio\2022\Professional\VC\Redist\MSVC\v143\MergeModules. But the merge module in them contain dll for both amd64 and arm64, can i get merge module targeting only amd64.

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Darran Rowe 1,046 Reputation points

2024-11-11T14:04:14.97+00:00

From what I remember, no.

The issue here is how x64 emulation or ARM64 works. Unlike x86, x64 uses the ARM64 native libraries with extra entry points to satisfy dependencies for x64 applications. So, the VC Redistributable has to take into account that it can be installed on x64 systems or ARM64 systems.

The older x64 redistributables that didn't take this into account actually broke the redistributable on ARM64 systems.
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Bevan Thomas 40 Reputation points

2024-11-11T14:13:46.6133333+00:00

I actually wanted to include the merge module in wix installer, but i get an ICE30 error, where the arm64 and amd64 is trying to install same dll in a directory.Can we somehow resolve this.Didnt have this issue with v141 merge module

Bevan Thomas 40 Reputation points

2024-11-11T15:06:26.5466667+00:00

I actually wanted to use this merge module to add it in the wix installer but I was getting an ICE80 error as the arm64 and amd64 dll were installing some common file into the directory.Is there a way to solve this issue. Did not have this issue in v141 merge modules.

Darran Rowe 1,046 Reputation points

2024-11-11T15:56:59.6933333+00:00

The v141 merge modules wouldn't have the issue, since Windows 11 wasn't released then. x64 emulation was only added to Windows in the Visual Studio 2022 time frame. However, as already mentioned, this could break applications if it was installed on the ARM64 version of Windows 11.

For the MSMs, are you sure that this isn't a WiX problem? I would have to double check the MSI database tables, but I would be extremely surprised if there was no platform related entries there.

--Edit--

After checking with Orca, the merge modules certainly do check for ARM64:

the files also properly have the condition set so that they are only considered on the correct platform:

So my opinion is that this is WiX.
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Visual c++ merge modules

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