Microsoft Windows Server License Requirements

Windows 2003 R2 Standard Server:

• 133 MHz minimum CPU speed; 550 MHz recommended
• 128 MB RAM minimum; 256 MB RAM recommended; 4 GB maximum
• 1.5 GB of available hard disk space
• Supports up to four CPU's on one machine

Windows 2000 Standard Server:

• 133 MHz or faster Pentium-compatible CPU 
• 128 MB RAM minimum; 256 MB recommended; 4 GB maximum
• 2 GB hard disk space with a minimum of 1 GB of free space
• Supports up to four CPU's on one machine