Hi, We have some text below as follows: Watched Patient Video NL - Test double byte characters ??? in a mongo db collection When we try to retrieve those values and form xml, Those characters are changing to "Watched Patient Video NL - Test double byte characters ???" in UTF-8 or ISO-8859-15. When we use UTF-16 encoding, its throwing exception "content is not allowed in prolog" in server. But in local, its accepting UTF-16 encoding and values are passing correctly. We don't know what is going wrong in server. Kindly help us in it.