How many computers can I install dream weaver cs4 on

Solved.

Thank you Ben M

I was told the aged out activation servers for CS1 - 4 have been taken offline. 

Assuming you have the installation disks you received at purchase and a legitimate serial number, a fresh install on a new Windows computer might work or it might not.  I'm afraid that's the risk you take with discontinued, unsupported software.

That said, Adobe isn't interested in old software.  They only support the last 2 Creative Cloud versions  --  20 and 21.

https://helpx.adobe.com/ca/dreamweaver/release-notes.html

Creative Cloud Plans
https://www.adobe.com/creativecloud/plans.html

To answer your other question, yes.  You can move your site folder from the old computer to your new computer.  HTML files can be edited with any modern code editor.

CODE EDITORS:

============
-- Adobe Dreamweaver CC - https://www.adobe.com/products/dreamweaver.html
-- Atom (free) - https://atom.io/
-- Codespaces (free, browser-based) - https://github.com/features/codespaces
-- Nova (Mac only, formerly called Coda) - https://nova.app/
-- Pinegrow - https://pinegrow.com/
-- Sublime Text - http://www.sublimetext.com/
-- Visual Studio Code (free) - https://code.visualstudio.com/
-- Wappler ~ Visual Web App Builder - https://wappler.io/

Hope that helps.