Installing SAP Host Agent Using Software Provisioning Manager 1.0 
You can also install SAP Host Agent using software provisioning manager 1.0 (formerly known as SAPinst). The required files are on the kernel medium for the current release.
Procedure
Proceed as described in section Installing SAP Host Agent Separately in the documentation Installation Guide - SAP Systems Based on the Application Server ABAP of SAP NetWeaver on <OS>: <DB>- Using Software Provisioning Manager 1.0 at: 
http://service.sap.com/instguidesnw 
<Release> Installation 