This msvcr100.dll is the Microsoft Visual C++ Redistributable dll that is needed for projects built with Visual Studio 2010. The dll letters spell this out.
MS = Microsoft
V = Visual
C = C++
R = Redistributable
V = Visual
C = C++
R = Redistributable
When starting some applications or games like angry birds and fruit ninja for PC this error may occur. But don’t worry. Here is an easy solution to fix MSVCR100.dll missing error. Download and Install the files depending on your operating system version and you can start your application or games.