I think the documentation is clear, for the OS type is says:

cblte-osi-os-type131 for Windows systems, 128 for COBOL systems on UNIX

and for the os-version:

cblte-osi-os-version 

Use is specific to the operating system. Can include information such as chip type and the operating system version number.

For Windows the third and fourth bytes contain the minor and major release operating system version numbers respectively.


The docs for anything other than third/forth bytes are not specific.   You would need to raise an issue for more information (possible docs change) or consider calling OS apis yourself to get more detailed information.

The values of cblte-osi-os-version on Unix are dependant uname/version being a numeric value, so in practice it has very little value, so raising a defect for this information will yield no useful information.

My recommendation to use an OS api is your best solution.

yes, i have found in the mf-help this byte cblte-osi-os-version!

But in p-os-version, there is no difference by Windows 10 ord Windows 11!

Can you give us the name of the os api?

Thank you very much for your help!

The information comes from the Windows itself and it does not distinguish between the two.

I would get the current build number and if the build is >= 22000 then it is Windows 11.

Any of the GetVersion* API can get the current build number or alternatively get it via the registry.

Windows 11 release numbers can be found @ learn.microsoft.com/.../windows11-release-information