When firing up Dreamweaver, Fireworks, Photoshop and Bridge today (CS3 versions), to work on a new website, everything crashed after a few minutes with the message “AMT Subsystem Error -The licensing subsystem has failed catastrophically. You must reinstall or call customer support.”

None of the programs would open so I trawled the Adobe website for an answer and found a useful Tech Note which offers a number of work-a-rounds. This can be found at:

http://kb2.adobe.com/cps/402/kb402004.html

As it turned out I just rebooted our PC’s and all the CS3 suite programs opened up.

They have remained stable for the last few hours so the problem seems to be solved.