I was connecting to a web service hosted in PHP today when WCF threw the following error:

The content type text/xml; charset=ISO-8859-1 of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were: …

I did some searching on the internet and it seems to be a known issue.  Here is exactly how I solved it.  I created three new classes which I have included links to download:


After adding these to your project add the following code to set the custom binding

CustomBinding binding = new CustomBinding(
new CustomTextMessageBindingElement("iso-8859-1", "text/xml", MessageVersion.Soap11),
new HttpsTransportBindingElement());

myWebService client = new myWebService();

client.Endpoint.Binding = binding;

Download code here WCF_CodeSample


Thanks to these links for the source files and answers







  1. Alastair

    Thank you so much for this – you have really been a great help with solving my problem. Many thanks again for making your efforts available to others with the same problem.

  2. Mara

    Thanks You have help me

  3. Thanks this solve my problem

  4. André Luiz

    Thanks! This help me so much!

  5. Thanks a lot for your post.

  6. Chal

    Nice. Thank you very much.

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