To work around this problem, follow these steps:1. Locate the following directory:
%windir%\System32\inetsrv\config
2. Open the applicationHost.config file in a text editor such as Notepad.
3. In the applicationHost.config file, locate the following code:<section name="requestFiltering" overrideModeDefault="Deny" />
 
4. Replace the code that you found in step 3 with the following code:<section name="requestFiltering" overrideModeDefault="Allow"/>
 
5. Locate the following diretory:
%windi%\System32\com
6. Double-click the directory of the SOAP-enabled server that you want to activate.
7. Open the web.config file in a text editor such as Notepad.
8. In the web.config file, locate the following code:</configuration>
 
9. Replace the code that you found in step 8 with the following code: <system.webServer>
  <security>
   <requestFiltering allowDoubleEscaping="True"/>
  </security>
 </system.webServer>
</configuration>