For a comprehensive list of your computer’s minimum hardware and software configuration requirements to install the Configuration Manager 2007 Inventory Tool for Microsoft Updates, see Configuration Manager Supported Configurations (http://go.microsoft.com/fwlink/?linkid=74530), which details the minimum requirements for your site server as well as the minimum requirements for your client computers.
Minimum Hard Disk Space Requirement
Configuration Manager Site Server To install the Configuration Manager 2007 Inventory Tool for Microsoft Updates, you must have 10 MB of available hard disk space for your installation directory. The installation directory must be formatted with NTFS, must be on a local drive, and must not be encrypted.
Client Computers To install the inventory tool on the clients, each client must have an additional 5 MB of available hard disk space for the inventory tool and 2 MB for the log files.
Microsoft XML
You must have Microsoft XML (MSXML) 3.0 or later installed on your Configuration Manager 2007 site server and on client computers. All client computers capable of running the Configuration Manager 2007 Inventory Tool for Microsoft Updates should already have a supported version of MSXML on their computers. If not, you can download MSXML from the Microsoft Web site.