about subdomain

i use dns service from centralinfo.net there i configure my domain my cable ip and i want to configure my shop.champwarez.com my same ip but different folder and i use personal web server is it possible.if it is possible want must i use my dns manager(myip.com/shop or myip.comshop)

could you re-write your question a little more clearly. i think what you are asking to do has to be done with whatever web server software you are using.

i mean how can i configure my shop.champwarez.com .i have only one ip address and it was champwarez.com.i want to open shop.champwarez.com.i use personel web server.
thanks