Operating System

• Adobe Dreamweaver CS4 operates on a system running Microsoft Windows XP Service Pack (SP) 2 or later, Vista Business SP1, Vista Ultimate SP1, Vista Enterprise SP1, Vista Home Premium SP1, Windows 7 (all versions) or Mac OS X v 10.4.11 to 10.5.4.
  
  

Processor Requirements

• The application requires a 1 Gigahertz or faster single or multi-core, Intel or similar processor, if using Windows. If using a Mac, a 1 GHz PowerPC G5 or later single or multi-core processor.
  
  

Memory and Hard Drive Requirements

• Adobe Dreamweaver CS4 needs at least 512 megabytes of RAM, both Windows and Mac systems, and at least 1.8 Gigabytes of free hard drive space to run the application. Additional hard drive space -- the amount varies -- is needed for the program's installation process due to the loading of temporary files. Adobe Dreamweaver CS4 cannot be installed on a flash drive-based storage device.
  
  

Additional Hardware And Internet Requirements

• The application requires a DVD-ROM drive for installation disc(s), an Internet connection for program updates and registration, a system with a 16-bit video card and a monitor with a resolution setting of 1,280 by 800.