diff --git a/src/client.c b/src/client.c
index fa032d7..d9171ef 100644
--- a/src/client.c
+++ b/src/client.c
@@ -997,6 +997,8 @@ client_set_rules(Client *c)
 
      XGetClassHint(dpy, c->win, &xch);
 
+     /* Following features is DEPRECATED, will be removed in some revision.  {{{ */
+
      /* Auto free */
      if(conf.client.autofree && ((xch.res_name && strstr(conf.client.autofree, xch.res_name))
                || (xch.res_class && strstr(conf.client.autofree, xch.res_class))))
@@ -1030,6 +1032,32 @@ client_set_rules(Client *c)
                               tags[c->screen][c->tag].layout.func(c->screen);
                          }
 
+     /* }}} */
+
+     /* Apply Rule if class || instance || role match */
+     for(i = 0; i < conf.nrule; ++i)
+     {
+          if((xch.res_class && conf.rule[i].class && !strcmp(xch.res_class, conf.rule[i].class))
+                    || (xch.res_name && conf.rule[i].instance && !strcmp(xch.res_name, conf.rule[i].instance)))
+          {
+               if(conf.rule[i].screen != -1)
+                    c->screen = conf.rule[i].screen;
+
+               if(conf.rule[i].tag != -1)
+                    c->tag = conf.rule[i].tag;
+
+               if(conf.rule[i].free)
+                    c->flags |= FreeFlag;
+
+               if(conf.rule[i].max)
+               {
+                    client_maximize(c);
+                    c->flags |= MaxFlag;
+               }
+          }
+     }
+
+
      return;
 }
 
diff --git a/src/config.c b/src/config.c
index 89626f6..9bf9d2c 100644
--- a/src/config.c
+++ b/src/config.c
@@ -605,6 +605,36 @@ conf_tag_section(void)
      return;
 }
 
+void
+conf_rule_section(void)
+{
+     int i;
+     struct conf_sec *rules, **rule;
+
+     rules = fetch_section_first(NULL, "rules");
+
+     rule = fetch_section(rules, "rule");
+
+     CHECK((conf.nrule = fetch_section_count(rule)));
+
+     conf.rule = emalloc(conf.nrule, sizeof(Rule));
+
+     for(i = 0; i < conf.nrule; ++i)
+     {
+          conf.rule[i].class     = fetch_opt_first(rule[i], "", "class").str;
+          conf.rule[i].instance  = fetch_opt_first(rule[i], "", "instance").str;
+          conf.rule[i].role      = fetch_opt_first(rule[i], "", "role").str;
+          conf.rule[i].screen    = fetch_opt_first(rule[i], "-1", "screen").num;
+          conf.rule[i].tag       = fetch_opt_first(rule[i], "-1", "tag").num;
+          conf.rule[i].free      = fetch_opt_first(rule[i], "false", "free").bool;
+          conf.rule[i].max       = fetch_opt_first(rule[i], "false", "max").bool;
+     }
+
+     free(rule);
+
+     return;
+}
+
 void
 conf_menu_section(void)
 {
@@ -618,7 +648,7 @@ conf_menu_section(void)
 
      CHECK((conf.nmenu = fetch_section_count(set_menu)));
 
-     conf.menu = calloc(conf.nmenu, sizeof(Menu));
+     conf.menu = emalloc(conf.nmenu, sizeof(Menu));
 
      for(i = 0; i < conf.nmenu; ++i)
      {
@@ -756,6 +786,7 @@ init_conf(void)
      conf_client_section();
      conf_layout_section();
      conf_tag_section();
+     conf_rule_section();
      conf_menu_section();
      conf_launcher_section();
      conf_keybind_section();
diff --git a/src/structs.h b/src/structs.h
index 5da0fe4..b47e4ef 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -350,8 +350,25 @@ typedef struct
 {
      char *name;
      char *content;
+     char *role;
+     int screen;
+     int tag;
+     Bool free;
+     Bool max;
 } Alias;
 
+/* Rule struct */
+typedef struct
+{
+     char *class;
+     char *instance;
+     char *role;
+     int screen;
+     int tag;
+     Bool free;
+     Bool max;
+} Rule;
+
 /* Configuration structure */
 typedef struct
 {
@@ -460,6 +477,7 @@ typedef struct
      Layout layout[NUM_OF_LAYOUT];
      Menu *menu;
      Launcher *launcher;
+     Rule *rule;
      int *ntag;
      Bool tag_round;
      Bool client_round;
@@ -472,6 +490,7 @@ typedef struct
      int nlayout;
      int nmenu;
      int nlauncher;
+     int nrule;
 } Conf;
 
 typedef struct
diff --git a/src/wmfs.c b/src/wmfs.c
index 5ccb47e..fc11c6f 100644
--- a/src/wmfs.c
+++ b/src/wmfs.c
@@ -118,6 +118,7 @@ quit(void)
      }
 
      IFREE(conf.launcher);
+     IFREE(conf.rule);
 
      IFREE(conf.bars.mouse);
      IFREE(conf.selbar.mouse);
diff --git a/wmfsrc.in b/wmfsrc.in
index b58ee46..92fbfeb 100644
--- a/wmfsrc.in
+++ b/wmfsrc.in
@@ -127,6 +127,7 @@
                 #[mouse] [/mouse] Possible multi mouse section
         [/tag]
 
+        # clients option is *DEPRECATED* but works, see [rules] section
         [tag] name = "two"  clients = {"Browser"} [/tag]
         [tag] name = "three" [/tag]
         [tag] name = "four"  [/tag]
@@ -161,6 +162,7 @@
         # Modifier for mouse use
         modifier = "Alt"
 
+        # *DEPRECATED* but works, see [rules] section
         # Set automatic free or max client
         # autofree = "xterm|MPlayer"
         # automax  = "Navigator"
@@ -195,6 +197,20 @@
         [/titlebar]
 [/client]
 
+[rules]
+       # Example of rule for Mplayer
+       [rule]
+
+               class    = "MPlayer"  # First part of WM_CLASS
+               instance = "xv"       # Seconf part of WM_CLASS, not needed if first part is correct
+               # role = ""           # WM_WINDOW_ROLE (will be implemented)
+               screen   = 0          # Screen to use
+               tag      = 2          # Tag number of apps
+               free     = true       # Set automatic free client
+               max      = false      # Set automatic maximized client
+       [/rule]
+[/rules]
+
 [menu]
         # Default menu, binded on the root window, button 3.
         [set_menu]