diff --git a/.gitignore b/.gitignore
index 5ece481..3f4ef09 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,10 @@
 *.tws
+*.mod
+*.f
+*.for
+*.f90
+*.obj
+*.o
+*~
 norm_end
 swaninit
\ No newline at end of file
diff --git a/INSTALL.README b/INSTALL.README
index bc6de7a..79b9bfa 100644
--- a/INSTALL.README
+++ b/INSTALL.README
@@ -8,5 +8,11 @@ Instructions for quick installation of SWAN
    called ActivePerl (www.activestate.com/activeperl/downloads).
    The Perl version should be at least 5.0.0 or higher!
 
-2) From the 'build' directory, type 'mk.pl ser' for a serial compilation.
-   Type 'mk.pl omp' for an openMP compilation
+2) From the 'src' directory, type 'perl platform.pl' to set up macros.ini file
+   On Linux:
+     Type 'make ser' for serial compilation.
+     Type 'make omp' for an openMP compilation
+   On Windows:
+     Enter the VS compiler environment
+     Type 'nmake ser' for serial compilation.
+     Type 'nmake omp' for an openMP compilation
diff --git a/bin/snl-swan-win-omp-ifort.exe b/bin/snl-swan-win-omp-ifort-32.exe
similarity index 100%
rename from bin/snl-swan-win-omp-ifort.exe
rename to bin/snl-swan-win-omp-ifort-32.exe
diff --git a/bin/snl-swan-win-omp-ifort-64.exe b/bin/snl-swan-win-omp-ifort-64.exe
new file mode 100755
index 0000000..d9bfdef
Binary files /dev/null and b/bin/snl-swan-win-omp-ifort-64.exe differ
diff --git a/bin/snl-swan-win-ser-ifort.exe b/bin/snl-swan-win-ser-ifort-32.exe
similarity index 100%
rename from bin/snl-swan-win-ser-ifort.exe
rename to bin/snl-swan-win-ser-ifort-32.exe
diff --git a/bin/snl-swan-win-ser-ifort-64.exe b/bin/snl-swan-win-ser-ifort-64.exe
new file mode 100755
index 0000000..df487d5
Binary files /dev/null and b/bin/snl-swan-win-ser-ifort-64.exe differ
diff --git a/src/platform.pl b/src/platform.pl
index ece03cd..2efb143 100644
--- a/src/platform.pl
+++ b/src/platform.pl
@@ -1,8 +1,8 @@
-my $os  = `uname -s`;
+#my $os  = `uname -s`;
    $os  = $^O unless chomp($os);
 
-my $cpu = `uname -m`;
-   $cpu = $^O unless chomp($cpu);
+#my $cpu = `uname -m`;
+#   $cpu = $^O unless chomp($cpu);
 
 open(OUTFILE,">macros.inc");