KB Issue
Adobe Dreamweaver CS4 was not designed and tested on Windows 2003 Server. Therefore, it is unsupported and should not be installed on Windows 2003 Server.
Issue Details
Adobe developed the CS Suite to run on Windows XP and Vista but not on Windows 2003 Server. DWCS4 (Dreamweaver CS4) should have been designed to work with Windows 2003 Server, as it is a production machine, and at times work needs to be done on the sites via the server rather than FTP.
You will get an Error message letting you know that DWCS4 will only work on Windows XP SP2 and Windows Vista, and that you should discontinue the installation of the program until the system meets the installation requirements.
System Check
The minimum system requirements listed below are needed to run
Adobe Dreamweaver CS4 and are not met:
Windows XP Service Pack 2
Windows Vista
Please upgrade or adjust your system to meet these requirements.
[Quite][Continue]
Recreate Issue
Adobe has not tested Dreamweaver CS4 on Windows 2003 Server; they do not provide any support for its use on this OS.
Resolve Issue
    To install Dreamweaver CS4 on your Windows 2003 Server w/SP2 follow these simple steps.
  1. Make sure that your Windows 2003 Server has all required updates and hotfixes, and that it has the latest Service Pack, SP2.
  2. Click on the installation program to start the installation.
  3. When you are faced with the Warning about this is not a Windows XP SP2 or Vista, click [Continue]
    In the options section, Uncheck the following
  1. Adobe Media Player
  2. Adobe Air
  3. Adobe Device Central CS4
  4. Adobe Extension Manager CS4
  5. After you have unchecked the above items listed, and chosen your Destination Installation directory, click [Continue]
Installation should proceed without an issue to its completion.
After installation, click the shortcut, and Adobe Dreamweaver CS4 will launch. You will now be able to edit on your Windows 2003 Server.