Minimum	Recommended
CPU	1 GHz	2+ GHz
RAM	1 GB	2 GB
Operating System	Windows XP/XP Professional x64/Vista	Windows XP/XP Professional x64/Vista
Web Browser	Internet Explorer 5.5	Internet Explorer 7.0
3D Graphics Card (for 3D visualization)	OpenGL-compatible card (128 MB memory)	High-end OpenGL-compatible card (512+ MB memory)
OpenGL Library Version (for 3D visualization)	1.2	2.0+

NOTE: Windows 7 Support

NOTE: CPU - Not supported on AMD K8-based CPUs (Athlon 64, Sempron 64, Turion 64, etc) or AMD Phenom CPUs.

NOTE: Windows XP Professional x64 - STK will run as a 32-bit application in a 64-bit Windows environment.

NOTE: Video Cards - Video cards based on chipsets from ATI and nVIDIA have shown excellent performance and compatibility with STK when using recent drivers in desktop or laptop computers.
Graphics integrated on the motherboard in value desktop or laptop computers may have insufficient levels of 3D performance and will compete with STK and other applications for CPU resources which can create an unacceptable STK user experience.
Matrox Gxxx and 3Dlabs cards should be avoided due to various incompatibilities with STK and/or OpenGL.

NOTE: OpenGL - STK will automatically use OpenGL 1.1 with remote access applications (such as Microsoft Remote Desktop) and virtual PC applications (such as VMWare and Microsoft Virtual PC) that do not support OpenGL 1.2 extensions. Using OpenGL 1.1 with these applications will display the central body surface in the STK 3D Graphics window, with the following limitations:

• You can add only the base texture to the globe. Additional textures will be rejected.
• PDTT files will not work.

Disk Space Requirements:

The following table lists the disk space requirements for installing the STK Software Suite. Also included in the table are the disk space requirements for optional STK modules that call for a significant amount of additional disk space. Actual disk space requirements depend on your selections during set up.

Program	Disk Space Required
STK 9	1.5 GB
STK/Terrain, Imagery, & Maps
AGI High-Resolution Maps	70 MB additional
AGI Earth Imagery	>2000 MB additional
AGI World Terrain	250 MB additional

For installation more disk space is required than is needed for the actual size of the files because of the way in which the operation system allocates blocks of data. Some modules may require up to an additional 200 MB of temporary disk space during installation.