On the Bilinear Interpolation dll, we do have 32-bit and 64-bit compiled versions of this dll stored in the repository:

Trunk\ReferencedAssemblies\Interpolators\

and

Trunk\ReferencedAssemblies\Interpolators\x64

You should be able to just use the appropriate file. I believe that with the exception of the codecs, the rest of the assemblies are managed assemblies that can run under 32-bit or 64-bit operating systems, so you use the same assembly for both.

Steve