Mind your P/Invoke

It's important to get your P/Invoke [DllImport] declarations right in .NET. Josh Williams points out a specific problem on AMD64/x64.

I've been doing a huge amount of P/Invoke recently as we get our existing codebases ported to be usable in C#. We're mostly going pure-managed because we prefer having fewer large binaries to many small ones (which takes less of a hit on the loader). However, since we're dealing with the .NET Compact Framework, there are many, many places where the framework just doesn't have the features.