Determine if O/S is Windows 7

Question

Working on a project and need to be able to determine whether the O/S is Windows 7, Vista or default to XP. I understand I could run into Win2K and earlier versions but let's just say that's not a concern as other code will catch that before it gets to this point. My application will be in C++ for the time being using VS2005. I've found articles and sample code alike but they seem way bloated for my uses. Just looking for a quick and dirty return.

http://msdn.microsoft.com/en-us/library/ms724358%28VS.85%29.aspx

Answer 1

List of Windows Version, using GetVersionEx:

Version Number    Description
6.1               Windows 7     / Windows 2008 R2
6.0               Windows Vista / Windows 2008
5.2               Windows 2003 
5.1               Windows XP
5.0               Windows 2000