diff --git a/Main.sublime-menu b/Main.sublime-menu
new file mode 100644
index 0000000..86e7408
--- /dev/null
+++ b/Main.sublime-menu
@@ -0,0 +1,47 @@
+[
+    {
+        "caption": "Edit",
+        "mnemonic": "n",
+        "id": "edit",
+        "children": 
+        [
+            {
+                "caption" : "Php: Format Code",
+                "command": "php_beautifier"
+            }
+        ]
+        },
+	{
+        "caption": "Preferences",
+        "mnemonic": "n",
+        "id": "preferences",
+        "children":
+        [
+            {
+                "caption": "Package Settings",
+                "mnemonic": "P",
+                "id": "package-settings",
+                "children":
+                [
+                    {
+                        "caption": "PhpBeautifier",
+                        "children":
+                        [
+                            {
+                                "command": "open_file",
+                                "args": {"file": "${packages}/PhpBeautifier/PhpBeautifier.sublime-settings"},
+                                "caption": "Settings – Default"
+                            },
+                            {
+                                "command": "open_file",
+                                "args": {"file": "${packages}/User/PhpBeautifier.sublime-settings"},
+                                "caption": "Settings – User"
+                            },
+                            { "caption": "-" }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]
\ No newline at end of file
diff --git a/PhpBeautifier.sublime-settings b/PhpBeautifier.sublime-settings
new file mode 100644
index 0000000..dfa0a0d
--- /dev/null
+++ b/PhpBeautifier.sublime-settings
@@ -0,0 +1,9 @@
+{
+	"filters" : [
+			"ArrayNested()",
+			"NewLines(before=switch:while:for:foreach:T_CLASS:return:break)",
+			"Pear(add-header=false)"
+		],
+	"indent" : "-s4",
+	"extensions" : ["php"]
+}
\ No newline at end of file
diff --git a/php_beautifier.py b/php_beautifier.py
index 3a8f1eb..66b1c03 100644
--- a/php_beautifier.py
+++ b/php_beautifier.py
@@ -7,39 +7,49 @@
 
 
 class PhpBeautifierCommand(sublime_plugin.TextCommand):
-    def run(self, edit):
+    def run(self, edit):        
+        # Load settings
+        settings = sublime.load_settings('PhpBeautifier.sublime-settings') 
         # Test environment
         if self.view.is_scratch():
             return
 
         if self.view.is_dirty():
-            return sublime.status_message("Please save the file.")
+            return self.error("Please save the file.")
 
+        # check if file exists.
         FILE = self.view.file_name()
         if not FILE or not os.path.exists(FILE):
-            return self.status("File does not exist.")
+            return self.error("File {0} does not exist.".format(FILE))
 
-        if not FILE[-3:] == 'php':
-            return self.status("File does not have php extension.")
+        # check if extension is allowed.
+        fileName, fileExtension = os.path.splitext(FILE)        
+        if fileExtension[1:] not in settings.get('extensions'):
+            if not self.missingFileExtension(fileExtension[1:], settings):
+                return            
 
         # Start doing stuff
         cmd = "php_beautifier"
-        indent = "-s4"
-        filters = "ArrayNested() NewLines(before=switch:while:for:foreach:T_CLASS:return:break) Pear(add-header=false)"
 
+        # Load indent and filters settings        
+        indent = settings.get('indent');
+        filters = ' '.join(settings.get('filters'));
+        
         allFile = sublime.Region(0, self.view.size())
         AllFileText = self.view.substr(allFile).encode('utf-8')
 
         if os.name == 'nt':
+            cmd_win = cmd + ".bat"
             startupinfo = subprocess.STARTUPINFO()
             startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
             startupinfo.wShowWindow = subprocess.SW_HIDE
-            p = subprocess.Popen([cmd, indent, "-l", filters, "-f", "-", "-o", "-"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo)
+            p = subprocess.Popen([cmd_win, indent, "-l", filters, "-f", "-", "-o", "-"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo)
         else:
             p = subprocess.Popen([cmd, indent, "-l", filters, "-f", "-", "-o", "-"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         stdout, stderr = p.communicate(AllFileText)
         if len(stderr) == 0:
             self.view.replace(edit, allFile, self.fixup(stdout))
+            self.status("PhpBeautifier: File processed.")
         else:
             self.show_error_panel(self.fixup(stderr))
 
@@ -57,3 +67,19 @@ def show_error_panel(self, stderr):
 
     def fixup(self, string):
         return re.sub(r'\r\n|\r', '\n', string.decode('utf-8'))
+
+    def status(self, string):
+        return sublime.status_message(string)
+
+    def error(self, string):
+        return sublime.error_message(string)
+
+    def missingFileExtension(self, fileExtension, settings):
+        if sublime.ok_cancel_dialog("Extension {0} is not a valid php extension. Would you like to add this extension to your preferences?.".format(fileExtension), "Yes, add {0} extension to my preferences".format(fileExtension)):
+            extensions = settings.get('extensions')
+            extensions.append(fileExtension)
+            settings.set('extensions', extensions)
+            settings = sublime.save_settings('PhpBeautifier.sublime-settings')
+            return True
+        return False
+