When I upgraded my laptop from Vista to Win 7 it was not necessary to unload the platform, and my CS3 Extended carried over to Win 7 with no problems. I recently upgraded my desktop (Win XP) to Win 7, but it was necessary to unload the platform to do the upgrade. When I went to reinstall CS3 Extended on the Win 7 platform I discovered that the disc case for my CS3 was long gone, and I am unable to retrieve the Ser # so I can reinstall my CS3 Ext on the Win 7 platform. I have the CS3 disc(s), but am stuck without the Ser#. Does anyone know how to solve this problem?
Your best hope is that you registered CS3. If so it should be in Adobe.com under My Stuff/Products.
Have you registered the application with Adobe?
Click the red logo at the top of this page, then find the (small) My Adobe link. That should take you to a list where you can view your products, and hopefully retrieve your serial number. Caveat: I'm not sure that works with registered products that weren't bought from Adobe as downloads. I hope it does.