I don't really know but i do know that you can buy and sell horses for passes and e's!!
You can find it at the link below.
Go to communities → Directories → click on the "horses" tab → type in the name of the horse you wish to find.
once posted it's easy for the creators of Howrse to find those codes and then get rid of them. using suspect cheating codes can get you banned on Howrse
When you click the button to feed your howrse, it will indicate how much fodder it needs.
The whole idea of The Scavenger Hunt is use your knowledge of howrse to find the answer on howrse. The answer can be found by pasting the id number "223" into your browser's address bar using the address of a horse's public page, after the word fiche.
When your horse is old enough, on the right of its picture, it will say board my horse in an equestrian center.
Put your horse in the box for a while. It's not definite that you'll find one, but just keep trying. ~Camigurl on howrse if you want to friend. :)
You can get passes if you pay, or if you want passes for free, go on howrse every day and then when you go on it for 50 days you get 1 free pass, or if you look after your horse sooooooo well you will get some equus. There are no codes for 2010 but, there is just one this works for 2010. BUT I FORGOT IT. Why don't you just put simple things in like a guess like this PPP898B, BATHS789 or something else silly lol. But there are NO codes for 2010 just the one I forgot. (The codes are promotional codes when you can put codes in the bar and get things) remember go on it for 50 days you will get 1 free pass! and look after your horse so well you will get some equus. My user name on howrse is heli Simpson FIND ME! Bye!
I know there is another way but i forgot. To see your dead horse go to your page and on the bottom i think their is a button saying horses in heaven.please VISIT MY PAGE!On howrse i am shelby6789
Go to www.bellasara.synthasite.com there are loads of codes there.
you put your horse in the EQs box.you dont always find a tub of grease-but keep looking!
If you are under a certain level, You will not be able to see it, but it is under the Genetics tab on your howrse. Sometimes they exceed their genetic potenetial!! On Howrse I'm KarenjustLOVEShorses please congratulate me.