Server Error in ‘/BTSharePointAdapterWS’ Application: Request format is unrecognised

Whilst configuring the SharePoint Adapter for BizTalk for a client today, I came across a couple of issues. The first error made me think that I had really screwed up the installation of the WSS adapter.  I was getting the following error when trying to browse to the web service.

“Request format is unrecognized.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Request format is unrecognized”

Thanks to a blog post by Kent Weare (which can be found here http://kentweare.blogspot.com/2010/05/sharetalk-integration-wss-adapter-web.html), I was able to resolve this by removing the following setting from the web services web.config file.

<webServices>
    <protocols>
        <!–<remove name=”documentation”/>–>
    </protocols>
</webServices>

As soon as I commented out this line I was able to browse to the web service successfully.