Really need some help here. I am at a loss. I am trying to install a webservice that some other guy wrote in .NET. I have some basic IIS understanding. The webservice works just fine on my dev computer. But now i try to move the webservice to a production server and bad things happens.

The webservice has been located in C:\inetpub\wwwroot\ dir on the dev server. But on this production server it is to be located in D:\services\

I have managed to install an application on the production server and everything seems fine and dandy. But when i "Test Settings" in the initial setup i get "Invalid application path" error. But i can just close it down and still install it. But when i try to access the webservice with: http://myserver.com/webservice/GetData nothing happens. Just a blank page and when i check the response headers...500 error.

I don´t know what is going on here or where the problem is. I post the config file here so someone hopefully might notice something odd.

Thanx in advance!

EDIT: The config file is from my dev server. I just copied it to my production server...but that obviously didn´t work :-)

UPDATE: I noticed that my dev server run in an Application pool with Net 4 and in "classic" "mode". On the production server it was in NET 4 but in "integrated" mode. So i changed it to "classic". I still get a blank page. But checking the log will output this:

2012-10-03 14:57:00 ip removed GET /boo/GetData - 80 - ip removed Mozilla/5.0+(Windows+NT+6.1;+WOW64;+rv:15.0)+Gecko/20100101+Firefox/15.0.1 404 2 1260 203

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.web>
    <identity impersonate="true" />
    <!-- Impersonate NT AUTHORITY/IUSR -->
    <compilation targetFramework="4.0">
      <assemblies>
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b7735c561131e089" />
      </assemblies>
    </compilation>
    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID" />
  </system.web>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
    <httpErrors existingResponse="PassThrough" />
    <httpProtocol>
     <customHeaders>
       <add name="Access-Control-Allow-Origin" value="*" />
     </customHeaders>
   </httpProtocol>
        <directoryBrowse enabled="false" />
  </system.webServer>
  <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
    <standardEndpoints>
      <webHttpEndpoint>
        <!-- 
            Configure the WCF REST service base address via the global.asax.cs file and the default endpoint 
            via the attributes on the <standardEndpoint> element below
        -->
        <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true" />
      </webHttpEndpoint>
    </standardEndpoints>
  </system.serviceModel>
  <connectionStrings>
    <add name="Entities" connectionString="metadata=res://*/DataModel.csdl|res://*/DataModel.ssdl|res://*/DataModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=someip;initial catalog=db_90;User ID=user1;Password=access2;multipleactiveresultsets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
  </connectionStrings>
</configuration>