This is just notes at this point
To install SNMP role on Server 2000 / 2003 and Windows XP
%windir%\system32\sysocmgr.exe /i:%windir%\inf\sysoc.inf /r
The /r is optional and indicates that the server should not reboot after installation. You need to have the Windows Installation Media available somewhere in your path, or edit the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup to point to a network share for OS installation media.