title: Where does Microsoft Windows' 7 POSIX implementation currently stand?
body: <p>Is there a full POSIX implementation available in/for Windows 7 (I'm thinking of Windows Services for UNIX)?</p>
  
  <p>Is it available in every version of the OS (it seems not)?</p>
  
  <p>How does it add/improve or break on previous MS Windows POSIX implementations?</p>
  
  <p>Where can i find more info on specific Microsoft approaches and implementations regarding POSIX compliance in Windows 7?</p>