Information from the official website
System Requirements:
Intel Pentium 233 MHz or faster processor (Core 2 Duo recommended)
2 GB Minimum
High Speed Internet
10 GB of available hard-disk space; large searches and retrievals may require additional space
Minimum 1024 x 768 Screen Resolution
Microsoft Windows® 2000 with Service Pack 3 (SP3), Windows XP, or later
DOT NET Framework 1.1
Internet functionality requires broadband Internet access