I have the Adobe Creative Cloud, and I installed Premiere Pro CS6 Family. I was able to open it once, but now that I have tried launching it recently, it comes up with an error message saying "This application has failed to start because MSVCR100.dll was not found. Reinstalling the application may fix this problem". What exactly does that mean?
It means that the Microsoft Visual C++ Resource library got corrupted. Reinstalling can help, because that is the first step of the installlation process. The alternative is to go to the Microsoft site and download the latest C++ libraries and install them manually.