What should I know about development for 64-bit applications?

Question

I plan to get 64-bit OS, so I can see all 4 gigabytes of memory that I installed.

The question arises: as a developer, what do I need to know when developing applications for 64-bit OS? I read somewhere that data types, such as int (code I am in C #), can contain large values ​​(probably due to bytes / bits, etc.).

Is there somewhere that explains how it all works (a little rusty in my fundamentals and math, I think)?

thanks

Answer 1

#. System.IntPtr ; . ; Int64 , 32- .

, 64- 64- , ints.

Answer 2

Microsoft.

64- screamin , Visual Studio 2008 32- .