Windows Server version not being detected correctly in TCMD 26RC2

[shoek]

Just installed the new 26 RC2 on my Window Server Essentials 2019 machine.
It reports

TCC  26.00.24 x64   Windows Server 2016 [Version 10.0.17763]
TCC Build 24   Windows Server 2016 Build 17763

But this is Windows Server Essentials 2019, 1809, 17663.1098 according to the Windows Settings About

 

[rconn]

That's what I get for using the Microsoft code to determine the server version.

I've replaced that with my own version (which works) for the next build.

 

[AnrDaemon]

This is because Microsoft intentionally lies to GetVersion call. :/

GetVersion function (sysinfoapi.h) - Win32 apps

With the release of Windows 8.1, the behavior of the GetVersion API has changed in the value it will return for the operating system version. The value returned by the GetVersion function now depends on how the application is manifested.

docs.microsoft.com

 

[Charles Dye]

This is because Microsoft intentionally lies to GetVersion call. :/

Since MS-DOS 5, yeah. Nothing new.

 

[rconn]

This is because Microsoft intentionally lies to GetVersion call. :/

GetVersion function (sysinfoapi.h) - Win32 apps

With the release of Windows 8.1, the behavior of the GetVersion API has changed in the value it will return for the operating system version. The value returned by the GetVersion function now depends on how the application is manifested.

docs.microsoft.com

I know; that's not the call that's failing (it's IsWindowsVersionOrGreater).

 

[AnrDaemon]

I was expecting that, since it clearly states that you can't get a version response greater than what your program manifests.
But I'm not set up to test.

 

[shoek]

If you're open to including 3rd party open source in your code, we've used this module for years and it has never had issues and is kept up to date by the author:
DtWinVer v2.40

 

[AnrDaemon]

Seeing as it is using same "IsWindows***" calls, I think it is prone to the same issues. I.e. not future-proof.

 

[vefatica]

I'm just curious. Shoek, do you get accurate information from these?

v:\> wmiquery . "Select Name,Version,BuildNumber from Win32_OperatingSystem"
BuildNumber = 18363
Name = Microsoft Windows 10 Pro for Workstations|C:\WINDOWS|\Device\Harddisk0\Partition3
Version = 10.0.18363

v:\> echo %@regquery["HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ReleaseId"]
1909

 

[shoek]

I'm just curious. Shoek, do you get accurate information from these?

v:\> wmiquery . "Select Name,Version,BuildNumber from Win32_OperatingSystem"
BuildNumber = 18363
Name = Microsoft Windows 10 Pro for Workstations|C:\WINDOWS|\Device\Harddisk0\Partition3
Version = 10.0.18363

v:\> echo %@regquery["HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ReleaseId"]
1909

Yes I do:

BuildNumber = 17763
Name = Microsoft Windows Server 2019 Essentials|C:\WINDOWS|\Device\Harddisk0\Partition3
Version = 10.0.17763

1809