The following are the minimum system requirements for running Microsoft Expression Encoder:
Windows XP with Service Pack 2, Windows Vista, or Windows 7.
Windows Media Player 11 (Windows XP only).
1.0 GHz or faster processor.
1 GB RAM or more.
1 GB or more of available hard-disk space.
.NET Framework 3.5 with Service Pack 1.
Support for Microsoft DirectX 9.0 graphics with Windows Vista Display Driver Model (WDDM), 128 MB of graphics RAM or more, Pixel Shader 2.0 in hardware, 32-bits per pixel.
1024 x 768 monitor resolution with 24-bit color.
Internet access (for Internet functionality; additional fees may apply).