>>>According to Calvin, all existing code would break. There would be no backwards compability.
>>
>>If Calvin said it, you can take it to the bank. I wonder, however, if there's going to be a Win64s. There's got to be some backward support for Win32 apps.
>
>As long as it works. I would hate to have another Win32s debacle.

Oh, I agree totally, but I don't see how you can avoid having a thunking layer. Besides, the second time they try stuff is always better than the first (said with fingers and toes crossed in hope).