both links contain the same client .. same language which is english
if you live in europe.. download speed will be faster than the north america's location
and you dont have to instal it .. you just download and then extract the client and its folders from the winrar archive
however ,, i believe that u can change the game's language to whatever you want .. it means all game chats can support spanish language without to give unknown symbols .. keep in mind that only people with the same as client's language as urs can see what u type
for example take asians . they have the game's language installed in chinese . it work well for each other of them .. yet if they try to speak chinese to me .. i cant see their latters .. i only see weird symbols .. its cause i am using my client in english language
keep in mind .. epw's server rule only allowed to speak english in main chat