On the OfficeScan server,
use Client Packager to create a Setup package with an .exe extension
(you cannot create an .msi package). See Installing with Client Packager for details.
On the computer where you want to store the source, create
a shared folder.
Open the SMS Administrator console.
On the Tree tab, click Packages.
On the Action menu, click New → Package From Definition.
The Welcome screen of the Create
Package From Definition Wizard appears.
Click Next.
The Package Definition screen
appears.
Click Browse.
The Open screen appears.
Browse for the MSI package file. The file is on the shared
folder you created.
Click Next.
The Source Files screen appears.
Click Always obtain files from a source directory,
and then click Next.
The Source Directory screen
appears.
Click Network path (UNC name).
Click Browse and select the source
directory containing the MSI file (the shared folder you created).
Click Next.
The wizard creates the package. When it completes
the process, the name of the package appears on the SMS
Administrator console.