PKG-SNF-SDK-WIN/SNFMultiSDK_Windows_3.1/64bitDll/IMPORTANT.txt

IMPORTANT!!

The libgcc_s_sjlj-1.dll and snfmulti.dll from this distribution _MUST_
be kept together.  There are multiple versions of
libgcc_s_sjlj-1.dll. Other versions may not be compatible with this
distribution.

If you experience errors such as segmentation faults or "The
application failed to initialize" then the most likely reason is that
an incompatible version of the libgcc_s_sjlj-1.dll is being loaded by
snfmulti.dll.