Hi,
You can get it always.
Please go to
http:// service.sap.com/support -> software downloads -> Support packages and upgrade> A-Z index -> S-> solution manager -> solution manager 7.1 -> Entry by application component -> Agents for Managed system -> Select the most recent version which is 7.4. You can have All the OS releases inside.
or you even have 7.41 which is os independent.
Please check.
Thanks
Jansi