• CPU: Intel® Pentium® / 1 GHz processor or equivalent AMD processor. Faster processors will yield faster performance.  
• Memory: 512 MB RAM (1 GB RAM for Windows Vista™)
• Free hard disk space: 1 GB (2 GB for localized non-English Versions)
• L2 Cache: 512 KB
• Supported Operating Systems: Windows Server 2000, Windows Server 2003, Windows XP SP2 or higher - 32 bit, Windows 2000 SP4 or higher, Windows Vista™ or Windows Vista™ SP1, 32-bit
• DVD-ROM drive (required for installation)
• Microsoft® Internet Explorer 6 or higher
• Nuance-approved noise-canceling headset microphone, Creative® Labs Sound Blaster® 16 or equivalent sound card supporting 16-bit recording, speakers (required for playback of recorded speech and text to speech features)
• A Web connection is required for activation

Recommended System Requirements: 

• CPU: Intel® Pentium® / 2.4 GHz processor (1.6 GHz dual core processor) or equivalent AMD processor
• Memory: 2 GB RAM
• L2 Cache: 1 MB