This product is not designed for use in such an environment. Here"s one
issue that you might run into:
http://support.microsoft.com/kb/892375 End users may be prompted to allow or
block administrative actions that originate from a central management tool
after they install Windows AntiSpyware (Beta) on a computer that is managed
by Systems Management Server 2003
There is an MSI packaged in the executable you can download, and others here
have extracted that and experimented with silent install switches, but there
have been few reports of success and a number of reports that silent
installs don't function after the install.
The installer package reports that /S /V /qn will perform a silent install,
but I haven't tested this.
You can run the installer package with a /a switch which will create a
directory with Microsoft AntiSpyware.msi, and a program files and system32
subdir.
I'm afraid I've not enough experience with the installer to take the process
any further--but that should get you started.