WCF how to change NameSpace in response

[Luuk]

Currently i have reponse like this:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Header />
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <FindByBarcodeResponse xmlns="http://www.pharmapartners.nl/services/locker/v1">
      <ResponseCode>DELIVERY_NOT_FOUND</ResponseCode>
      <Gender xsi:nil="true" />
.....

I need a response like:

<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
  <soap-env:Header />
  <soap-env:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <v1:FindByBarcodeResponse xmlns:v1="http://www.pharmapartners.nl/services/locker/v1">
      <v1:ResponseCode>DELIVERY_NOT_FOUND</v1:ResponseCode>
      <v1:Gender xsi:nil="true" />
........

Are there any good pointers where to find how to do this?

(and if there are, where can they be found?)

[Luuk]

Basically i need a way to rewrite the serialized output.

I found that somehow i have to do SerializeReply
I was not able to find a good example how to implement this.