IsSystemDLL var #
IsSystemDLL reports whether the named dll key (a base name, like "foo.dll") is a system DLL which should only be loaded from the Windows SYSTEM32 directory. Filenames are case sensitive, but that doesn't matter because the case registered with Add is also the same case used with LoadDLL later. It has no associated mutex and should only be mutated serially (currently: during init), and not concurrent with DLL loading.
var IsSystemDLL = map[string]bool{...}