OK, so you have multi-license Creative Cloud set up, in the first instance I'm assuming you can see Fireworks in your list of apps to install but you re getting the licencing prompt? In the first instance try running Fireworks as an administrator and if you have made any changes to PDapp.exe remove them.
Try some of these if you are still stuck:
1) If you see a 'license this software' button - click it ... in some cases this resolves the issue
2) For quite a few people uninstalling Fireworks (reboot system after uninstall) and then reinstalling with an offline installer has worked, this has worked for people on both Windows and Mac in some cases. Download and offline installer from here *IMPORTANT* you must visit this page first to set an Adobe cookie otherwise the download will fail. Install Fireworks with the installer and see if it will launch, if you see a 'license this software' button click it.
3) Make sure Fireworks is closed - Launch the Creative Cloud App, click you profile icon (top right) => and sign out, then click => file => exit to close the Creative Cloud app - Launch Firework, and you should be prompted to sign in, login with your Adobe Creative Cloud details, click the 'license this software' button if you see it, did Fireworks launch successfully?
4) As you are on a multi-license set up, I would also ask your IT admin to get in touch with Adobe as they are more helpful in such case. The standard Adobe live chat support is pointless where Fireworks is concerned.
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