C Caller block *.dll error

I am getting the error failed to load custom code library c:\Armoury\dislib\slprj\_slcc\hpQwdVE1r6v1WgDG7ExooD_cclib.dll

Im not exactly sure how to resolve this issue - The library I am trying to call is not named such gobbledygook characters but matlab appears to have a mind of its own.

Actual C library is indicated as below along with the relavent header files.