For those of you who have bought Adobe CS4 and have been getting “License has expired for this product” message, there’s a quick fix you can use to fix the problem, it seems like some kind of licensing bug that could be affecting users who’ve bought the software.
The main problem is that after a certain period of time, the AMT Licensing file refuses to allow the CS4 application to load
Apparently after reading around, it is discovered that the amtlib.dll file that is contained in each individual application folder in the CS4 Master Collection needs to be replaced with a “lifetime version” to get your product working again. Contained in this download is the amtlib.dll file as well as a crack.bat script that will replace each old amtlib.dll file in each program folder with the “lifetime version”
