Labview 2011, with all the service packs.
The observed behaviour: when making a ring typedef in a struct, int32, and passing to DLL, the behaviour is as expected at
32 bit version of Labview.
When the same VI runs on 64 bit version, the int32 is passed to DLL as int64, and the DLL need to be conditionally
compiled to handle these different types. Validated with looking at the memory location where the struct is located.
Michael.