Download files having special characters in filemame

Hi I have my files in server and file names on DB ....files without special characters I am able to download from server using html download by binding href ....but for special characters file name its not possible to download..please give me suggestion to do... I have tried using linkbutton ...which I already created controls in aspx page and binding file name to it...but for multiple files its not working ....all files getting single click ...which file is clicked I am not able to get it...please help me in this