If you are getting "The program can't start because MSVCR100.dll is missing from your computer. Try reinstalling the program to fix this problem", it means you need to follow the installation instructions in the left column on "http://windows.php.net/download/":
"The VC11 builds require to have the Visual C++ Redistributable for Visual Studio 2012 x86 or x64 installed."
As the note there says, you can get it from: http://www.microsoft.com/en-us/download/details.aspx?id=30679