1 files changed, 4 insertions, 1 deletions
diff --git a/costvm b/costvm
index a00a229..895a4bf 100755
--- a/costvm
+++ b/costvm
@@ -2,13 +2,14 @@
 # encoding: utf-8
 
 if ARGV.length == 0 then
-  puts "Usage: costvm CORES MEMORY DISKS"
+  puts "Usage: costvm CORES MEMORY DISKS [windows]"
   exit
 end
 
 CORES = ARGV.shift.chomp.to_i
 MEM = ARGV.shift.chomp.to_i
 DISKS = ARGV.shift.chomp.split(',')
+WINDOWS = !ARGV.shift.nil?
 
 if CORES > 16 then
   puts "Invalid machine. Too many cores: #{CORES}."
@@ -65,4 +66,6 @@ DISKS.each do |disk|
   end
 end
 
+cost += MEM if WINDOWS
+
 puts "Machine cost: £#{cost}.00"