wyUpdate not using .NET 4.0

I know this is probably an easy question, but I am at a loss currently. We have wyUpdate working and has been working fine with many of our machines, but we recently have some new machines that do not have .NET 2.0 on them, and now the wyUpdate is not firing and trying to install .NET 2.0/3.5 when it launches. I've set the wyBuild to use .NET 4.0, but even after replacing that wyUpdate file with that it's still having the error. How can I make sure that the wyUpdate process is running in the right .NET version?

Thanks!G

Covered here: https://wyday.com/wybuild/requirements.php#wyupdate

Use .NET 4.x version of wyUpdate. Include it with your app. Include it in your installer.

Existing customers with the .NET 2.0 / 3.0 version of wyUpdate will continue using that version.

I had read through that information, and ensured that my wyBuild setting was already at .NET 4.0 and I have wyUpdate in my WiX based Installer. When it runs on the server without .NET 2.0 on it it fails to start and tries to install .NET 2.0/3.5.

Apparently I had grabbed the incorrect wyUpdate.exe on my machine and included it. Is there a way to inspect through properties or other means to determine which version that the wyUpdate.exe is set to run on?

You could build both and compare the file size with the one on the server. But you already know it's for .NET 2.0.