Software and hardware required

• OS: Windows 95/98/NT/2000
• Processor Pentium 133 or better.
• One parallel port (For CHED Full Version only)
• 32Mb of RAM to run CHED . To manipulate a database of 100,000 chemical structures, an additional 24Mb of RAM is required
• 60Mb of free disk space for installation. To store 1,000,000 structures without additional data, 400Mb of free disk space is required

Additional Requirements:

• Service pack 4 or higher is required for windows NT
• OS For Chemical Web Server - Windows 95/98/NT only