"License is invalid. License has expired." error message when launching a tool after product activation

This problem is caused by multiple license files for one product located in the licenses folder.

Please follow the steps below to fix this problem:

• Go to C:\ProgramData\ParallelGraphics\Licenses
• Back up all the license files
• Identify and delete old license files (i.e. keep only valid ones)
• Reboot your machine