I am using 7.4 and Cannot Import Window (vwin) file. What is up with that? Will someone help me out here? 
You can. You just need to hold down Shift when you right click on the Windows folder. You will see a Legacy Import (vwin) in the list.
Going forward, the shift-right click option is gone (as of 7.4.3). The normal import will let you choose either a legacy .vwin file or a .proj file.