Visual Studio 2015 build improvements.

sys/winnt/Install.nt

@@ -21,6 +21,10 @@ tty and graphical win32 versions of NetHack 3.6.1.
 You can build a TTY version of NetHack and a Windows Graphical 
 version.  You can use one of the following build environments:
 
+  o A copy of Microsoft Visual Studio 2015 Express
+
+	OR
+
   o A copy of Microsoft Visual Studio 2013 Express
     The current NetHack code has not been tested with earlier versions 
     of the compiler.
@@ -34,12 +38,35 @@ version.  You can use one of the following build environments:
         http://www.mingw.org/
     Earlier versions of MinGW will not allow you to build the Windows
     Graphical version.
-    
+
+
 In addition to the makefiles that allow you to build NetHack from the
 command line, there is also a set of project files and a workspace file
 that allow you to build the Windows Graphical version from Microsoft
 Visual C's IDE (Integrated Development Environment.)
 
+/-------------------------------------------------------\
+| Buildig And Running Using Visual Studio 2015          |
+\-------------------------------------------------------/
+
+If you are NOT using Visual Studio 2015, proceed to "FIRST STEP -
+MOVING THINGS AROUND".
+
+When using Visual Studio 2015, you do not need to move things around.
+You simply need to load the Visual Studio 2015 NetHack solution file
+within the IDE, build the solution and run the version of NetHack
+you wish to run.
+
+The Visual Studio 2015 NetHack solution file can be found here:
+    win\win32\vs2015\NetHack.sln
+
+From a command prompt, you can launch and load this solution file by:
+	start win\win32\vs2015\NetHack.sln
+
+From within the IDE:
+	1. select the build configuration you wish to use.
+	2. from build menu, select build solution.
+	3. type F5 to start debugging.
 
 /-----------------------------------\
 | FIRST STEP - MOVING THINGS AROUND |