Error running the rsim executable (Simulink Coder)

I have a simulink model (2016b with MC 2013 C/C++ and Mingw-64 compilers) that I'd like to generate a standalone executable for windows-64 bit.

I was able to run the grt executable but due to the fact that I need to read a mat file runtime as opposed to compile time, I am using rsim code generation for this purpose, however the executable that gets generated appears to need quite a bit of .dll, I provided the dll it was asking for however, the application still unable to run. This is the error that results

The application was unable to start correctly 0xc000007b. Click OK to close the application

What am I missing ?

Your main program is compiled for x64 (64-bit) target, but the dll you provided is compiled for x86 (32-bit) target. Or vice versa.

If it is Mingw-64 stuff, you should be able to obtain all (or most) of them by using the official online installer. Link is here.