title: WinRT .NET 4.5 and RCW
body: <p>Just curious if anyone has had sufficient time with WinRT yet to understand whether there are areas in WinRT and .NET 4.5 that efface to the .NET programmer some of the old items encountered in VSTO and COM Interop Office programming pertaining to RCWs and the differences in the COM reference counting and .NET GC beyond not using finalizer (making sure you get a reference to all .NET RCWs, etc). </p>
  
  <p>Not a big deal just curious if they abstracted away those considerations or better yet the architecture is materially different and these concerns are not even applicable. </p>
  
  <p>Thanks in advance</p>
  
  <p>Maybe a better way of asking the question is whether it still is materially the same architecture of .NET Objects in a managed/garbage collected memory model referencing COM (WinRT) objects in an unmanaged (yet sandboxed) reference counting memory architecture? </p>
  
  <p>Unless there is some "magic" in the meta data bindings or the sandboxed environment, then we will just need to apply the same approach we had with RCWs. </p>