As everyone has been very nice to post they're code, i thought i might post
 this snippet, it's very simple, im really just posting the idea. but if
 you get any use out of it, that would be great.

 It will allow you to create weapons which will be worn like armour but
 they're damage will be added to the overall damage, i have it set on my
 mud that only players over level 80 can use them.

 The usual disclaimer applies, im not responsible for this code

 first open structs.h
 ********************
 where the following is

 #define ITEM_FOOD      19  /* Item is food   */
 #define ITEM_MONEY     20  /* Item is money (gold)  */
 #define ITEM_PEN       21  /* Item is a pen  */
 #define ITEM_BOAT      22  /* Item is a boat  */
 #define ITEM_FOUNTAIN  23  /* Item is a fountain  */

 add

 #define ITEM_WEAPONUPG 24

 now open act.item.c
 *******************
 where you find this (in do_wear)

   if (dotmode == FIND_ALL) {
     for (obj = ch->carrying; obj; obj = next_obj) {
       next_obj = obj->next_content;
       if (CAN_SEE_OBJ(ch, obj) && (GET_LEVEL(ch) >= GET_OBJ_LEVEL(obj)) && (where = find_eq_pos(ch, obj, 0)) >= 0) {
       items_worn++;

 add

         if (GET_OBJ_TYPE(obj) == ITEM_WEAPONUPG && GET_LEVEL(ch) < 80) {
           send_to_char("Sorry you must be level 80 to use a Weapon Upgrade!\r\n", ch);
           return;
         }

 and further down

       while (obj) {
         next_obj = get_obj_in_list_vis(ch, arg1, obj->next_content);
         if ((where = find_eq_pos(ch, obj, 0)) >= 0) {

 add in

           if (GET_OBJ_TYPE(obj) == ITEM_WEAPONUPG && GET_LEVEL(ch) < 80) {
             send_to_char("Sorry you must be level 80 to use a Weapon Upgrade!\r\n", ch);
             return;
           }

 and further down again

     if (!(obj = get_obj_in_list_vis(ch, arg1, ch->carrying))) {
       sprintf(buf, "You don't seem to have %s %s.\r\n", AN(arg1), arg1);
       send_to_char(buf, ch);
     } else if (GET_LEVEL(ch) < GET_OBJ_LEVEL(obj))
       send_to_char("You are not experienced enough to use that.\r\n", ch);
     else {
       if ((where = find_eq_pos(ch, obj, arg2)) >= 0) {

 add

         if (GET_OBJ_TYPE(obj) == ITEM_WEAPONUPG && GET_LEVEL(ch) < 80) {
           send_to_char("Sorry you must be level 80 to use a Weapon Upgrade! \r\n", ch);
           return;
         }

 now open constants.c
 ********************

 down in ITEM_x

 add this at the end

   "WEAPON UPGRADE",

 now open fight.c
 ****************

 at the start of

 void hit(struct char_data * ch, struct char_data * victim, int type)
 {

 add

   struct obj_data *wielded2 = GET_EQ(ch, WEAR_WRIST_L);
   struct obj_data *wielded3 = GET_EQ(ch, WEAR_WRIST_R);
   struct obj_data *wielded4 = GET_EQ(ch, WEAR_FINGER_L);
   struct obj_data *wielded5 = GET_EQ(ch, WEAR_FINGER_R);

 (the positions can be changed as you like, or more entered)

 then after

     /* Maybe holding arrow? */
     if (wielded && GET_OBJ_TYPE(wielded) == ITEM_WEAPON) {
       /* Add weapon-based damage if a weapon is being wielded */
       dam += dice(GET_OBJ_VAL(wielded, 1), GET_OBJ_VAL(wielded, 2));
     }

 add

     if (wielded2 && GET_OBJ_TYPE(wielded2) == ITEM_WEAPONUPG) {
       dam += dice(GET_OBJ_VAL(wielded2, 1), GET_OBJ_VAL(wielded2, 2));
     }
     if (wielded3 && GET_OBJ_TYPE(wielded3) == ITEM_WEAPONUPG) {
       dam += dice(GET_OBJ_VAL(wielded3, 1), GET_OBJ_VAL(wielded3, 2));
     }
     if (wielded4 && GET_OBJ_TYPE(wielded4) == ITEM_WEAPONUPG) {
       dam += dice(GET_OBJ_VAL(wielded4, 1), GET_OBJ_VAL(wielded4, 2));
     }
     if (wielded5 && GET_OBJ_TYPE(wielded5) == ITEM_WEAPONUPG) {
       dam += dice(GET_OBJ_VAL(wielded5, 1), GET_OBJ_VAL(wielded5, 2));
     }

 now open spells.c
 *****************

 where this is in ASPELL(spell_identify)

     case ITEM_WEAPON:

 add
     case ITEM_WEAPONUPG:

 just underneath it

 ********IF YOU HAVE OLC**********

 open olc.h/oasis.h
 ******************

 where there is a define for NUM_ITEM_TYPES

 add one to the number thats there

 open oedit.c
 ************

 where the 4 variables are set for an object
 depending on what it is, put

 case ITEM_WEAPONUPG:

 under all the "case ITEM_WEAPON:" you find in the file

 That should be it, if you do use my code, i'd like to know
 my e-mail is m_gally@hotmail.com (Subliminal)