Processor:
500 MHz or faster CPU
Memory:
Minimum: 256 meg RAM
Recommended: 512 meg RAM or higher

Video:
1024 x 768 screen resolution or higher

Disk Space:
60 meg for application
2 GIG or more for patch repository

Operating System:
Windows 2000 SP3 or later (Professional, Server, or Advanced Server)
Windows XP Professional
Windows Server 2003 Family

Pre-requisite Software:
Internet Explorer 5.5 or later
Windows Installer 2.0
Microsoft Data Access Controls (MDAC) 2.7 or later
MSXML 4.0 SP2
JET 4.0 SP6 or later
Microsoft .NET Framework 1.1

Supported Clients

Browser:
Internet Explorer 4.0 or later required to enable deployments
Operating Systems:
Windows NT Workstation 4.0 (SP4 or higher)
Windows NT Server 4.0 (SP4 or higher)
Windows NT Server 4.0, Enterprise Edition (SP4 or higher)
Windows NT Server 4.0, Terminal Server Edition (SP5 or higher)
Windows 2000 Workstation
Windows 2000 Server
Windows 2000 Advanced Server
Windows 2000 Datacenter Server
Windows 2000 Small Business Server
Windows XP Home Edition (local scans only)
Windows XP Professional
Windows XP Tablet PC Edition
Windows Server 2003, Enterprise Edition
Windows Server 2003, Standard Edition
Windows Server 2003, Web Edition
Windows Server 2003 for Small Business Server
Windows Server 2003, Datacenter Edition

Disk Space::
Free space on the system root equal to five times the size of the patches being deployed

Unsupported Clients

Operating Systems:
MSDOS
Windows 3.X
Windows 95
Windows 98
Windows ME
Windows NT 3.X
64 bit operating systems
Non Microsoft operating systems
Checksum scanning is not valid against multi-processor and hyperthreaded machines