Downloading the SAPHOSTAGENT Archive 
The SAPHOSTAGENT<SP-version>.SAR archive contains all of the required elements for centrally monitoring any host. It is automatically installed during the installation of SAP systems, instances, or components based on SAP NetWeaver 7.0 EHP 2 and higher. You only need to download SAPHOSTAGENT<SP-version>.SAR separately in the following cases:
You want to install or upgrade SAP Host Agent on a host without an SAP system, instance, or component.
You want to install or upgrade SAP Host Agent on a host with SAP systems, instances, or components that are based on SAP R/3 or on an SAP NetWeaver release lower than SAP NetWeaver 7.0 EHP 2 or SAP NetWeaver 7.2.
Go to the SAP Software Distribution Center of the SAP Service Marketplace at http://service.sap.com/swdc.
Log on with your SAP Service Marketplace ID.
In the navigation bar, choose .
Select the appropriate SAPHOSTAGENT <SP-version>.SAR archive from the Download tab.
Recommendation
Always select the highest SP version of the SAPHOSTAGENT<SP-version>.SAR archive, even if you want to monitor a component of SAP NetWeaver with a lower release.
Make sure that the SAPCAR tool is available on the host where you want to install SAP Host Agent.
You need the SAPCAR tool in order to be able to decompress the SAPHOSTAGENT<SP-version>.SAR archive. For more information about SAPCAR and how to get it, see SAP Note 212876.