You’ll need the full Visual Studio to use addins. Express doesn’t have that.
You can still use the source files though. Just copy the files, create a new project, add the files, set character set to Multi-Byte, runtime to Multi-Threaded DLL [Debug] and you should be all set. The addin is just a helper to make that process a little faster (and perhaps easier if you haven’t used VS before), you don’t really need it to make games.