How to change the encoding type of an entire HL7 Message?

Hello all,

I have a problem where one of our 3rd party systems is only able to accept HL7 messages with UTF-8 encoding but the originating messages have Windows 1252 encoding. Does anyone know a way in which I can change the encoding for the entire message from Windows 1252 to UTF-8? I have only been able to find the CONVERT method to change individual charachters but we would like to change the entire HL7 message encoding.

Thanks!