Ever wondered that after installing the BizTalk Adapter on a SharePoint (SP1) Server, you want to have access to the btsharepointadapterws.asmx webservice via internet explorer ? You will receive a Server Error I wrote a blog entry how you can fix it. http://bluebiztalk.blogspot.com/2008/07/btsharepointadapterwsasmx-server-error.html Frederik Van Lierde http://www.SilverSandsAssociates.com http://BlueBizTalk.Blogspot.com