Hi Mohammed,

Do you mean LTSC vs SAC or Win 10 version (e.g. 21H1)?

Hi Eric 

i mean to limit the service resolution to any client run a specific WIN10 version like ( 1809, 1909, 21h1,... etc )

Thanks Mohammed, that's clear.

To avoid any confusion between old and new versions (2004 = 20H1 and 2009 = 20H2), I recommend to user the Windows build number that is available in ZHDWOSDB variable in ZCONFIG object: e.g. 18363 for 1909.

Add a ZSTOP expression to the service the same way it's done for Windows main versions:

WORDPOS(EDMGETV(ZMASTER,ZOS),'WIN10 WIN2K16 WIN2K19')=0   will install the service on Windows 10, Windows Server 2016 & 2019 only.

WORDPOS(EDMGETV(ZCONFIG,ZHDWOSDB),'18363 19041')=0    will install the service on builds 1909 and 20H1 (or 2004) only.

Information on versions and builds are available with a simple Google search.

Thank you Eric, Appreciate your help .