change a parameter in the eConnect service config file. To do this, locate the eConnect web services configuration file, which is usually installed at:
C:\Program Files\Microsoft Dynamics\eConnect 11.0\Service\ Microsoft.Dynamics.GP.eConnect.Service.exe.config
Open this file using a text or XML file editor and change the httpGetEnabled parameter to false.
Here is complete information about above error -
dynamicsgpland.blogspot.com/.../econnect-2010-integration-service-wont.html
Thanks
Avinash Mane