MSBuild更新，这是从哪里来的？

Question

Here is the context :

• 2 persons are working on a WPF application (me and a colleague)
• we both use the VS 2017 (i have the version 15.6.6 he has the version 15.6.4)
• we are both using the most recent and fully updated .NET Framework
• we are using MSI installation system to deploy our WPF application + Win services
• we are using WIX to package all this

But something strange happened: when I generate the installer, the netstandard.dll version deployed is the 4.6.25908.2, and when he generates the installer, the netstandard.dll is the 4.6.26011.1

After some research, we discover that this dll is coming from MSBUILD, and by checking in the "Developer Command Prompt for VS 2017", using the "msbuild" command : - my version is 15.5.180.xxxx - his version is 15.6.6.xxxx

My question is pretty simple, what is responsible for updating msbuild package?

Obviously, not VS or .Net Framework

I have found some nugget package to add to my projects but I don't want this, I want this dll to be updated properly in "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Professional\\MSBuild\\Microsoft\\Microsoft.NET.Build.Extensions\\net461\\lib" directory

How can I manage to achieve this?

Answer 1

Ok I found what was going on and there was no way to find out with what I posted.

This is the story :

• I installed VS 2017 Pro with a license
• I tried VS 2017 Enterprise for sometimes with a trial license
• VS 2017 setup made 2 distinct installations
• After the trial license expired, I was still using then Enterprise installation downgraded to a Pro version
• The Enterprise version was up to date but not the original Pro version

Conlusion: by updating the VS 2017 Pro version specifically, it solved my problem

@Hans Passant: the MSBUILD was indeed updated with VS 2017, but for some reason, I don't really understand, I have to update both Pro and Enterprise version to 15.6.6.xxxx in order to update MSBUILD properly