Windows Intel

Operating System | 32-bit: MS Windows VISTA/XP SP2 /2000 SP4 /NT 4.0 SP6 64-bit: MS Windows XP SP2
Minimum memory | 256 Mb, 512 recommended
Free disk space (complete installation) | For full installation Open CASCADE requires 800 Mb of disk space but during the process of installation you will need 1,6 Gb of free disk space.
Minimum swap space | 500 Mb
Video card | TNT/GeForce The following version of the TNT/GeForce drivers recommended: Windows XP Version: 30.82 or later Windows 2000 Version: 30.82 or later http://www.nvidia.com/view.asp?IO=winxp-2k_30.82 Windows NT Version: 29.42 or later http://www.nvidia.com/view.asp?IO=winnt_29.42
Graphic library | OpenGL (provided with the system)
C++ | Visual C++ 6.0 SP5, Visual C++ 7.1* Visual C++ 8.0 SP1
TCL (for testing tools) | TCL 8.x http://www.tcl.tk/software/tcltk/downloadnow84.html
Tix (for testing tools) | Tix 8.x http://tix.sourceforge.net/download.shtml
Java (for demonstration tools) | Java 2 Platform (JDK or JRE), Standard Edition, v 1.3.04: http://developer.java.sun.com
QT (for demonstration tools) | QT 4.2.3 http://www.trolltech.com/
FLTK (for demonstration tools) | FLTK 1.0.X , 1.1.X, http://www.fltk.org/software.php
Web browser (for online help) | Netscape 4.73 and Internet Explorer 5.0 or later

* Visual C++ 7.1 is a permanently tested platform. The official release of OCCT for Windows contains libraries built with VC++7.1.