Errors like the ones above can be an indication that the activation.dll file has been removed or changed in a way that makes it impossible for your program to use.
Some users have been successful at finding a copy of the activation.dll file online and saving it into the appropriate folder on their PC (in this case, the C:/windows/system32 folder). Get a new copy of the activation.dll file here
IMPORTANT NOTE: This means of adding the missing or corrupt dll file is not officially supported by Microsoft and should be performed with caution.

If you choose not to fix this, any applications that access this file simply will stop functioning for you. Error messages of this sort are often only the first indicators that your PC's operating system is in need of some attention. Every time you install or remove an application from your computer, important files and registry entries are altered. In time, these small changes compound and Windows has difficulty making sense of the data. Unfortunately, correctly identifiying and remedying issues with a computer's operating system is a task usually far beyond the average user's skill level. If you are experiencing a “activation.dll missing” error, we highly recommend a free file health scan of your computer to look for other issues that may also be contributing computer's problems and go from there. You may also consider using a program that updates drivers like Driver Detective Key.
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