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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 when I try to move the webservice to a production server, bad things happens.

The webservice is located at C:\inetpub\wwwroot\ on the dev server. But on this production server it is to be located at 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 an Invalid application path error. I can just close it down and still install it, but then when I try to access the webservice (at http://myserver.com/webservice/GetData) nothing happens. Just a blank page, and when I check the response headers, there's a 500 error.

I don´t know what is going on here or where the problem is. Here's the config file here so someone might notice something odd.

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

UPDATE 2: Thank you guys for your help. Your comments helped what to look for. After a lot of log looking, and rights management I found this Microsoft KB.

After checking ISAPI and CGI Restrictions on server level i found out that .NET 4 and .NET 4 64 was not allowed. After allowing both, FINALLY my webservice started to talk.

<?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>
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8
  • has your IIS 7.5 been configured to run ASP 32 bit application pools?
    – kafka
    Oct 3, 2012 at 14:00
  • Don´t know. How can i check that? Also why can´t i post my config file...do i need to indent all rows with 4 spaces=tidius work.
    – Juw
    Oct 3, 2012 at 14:01
  • Copy and paste the contents, select all of them, then click the Code icon to wrap it.
    – Brent Pabst
    Oct 3, 2012 at 14:03
  • Thx Brent for the help. Config file posted.
    – Juw
    Oct 3, 2012 at 14:04
  • Since your are installing the service in 'D:\services\' double check the permission settings.
    – Erwin
    Oct 3, 2012 at 14:29

1 Answer 1

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This may be a better question for stackoverflow.com but I'll take a stab at it for now.

From an IIS perspective if you can find out the specific 500 error it may give a big clue. Check the IIS logs in c:\inetpub\logs\Logfiles\w3svc{siteid}. Find the records for your failed tests and towards the end of the records you should see a 500{space}{something}{space}{something}. It's the {something}'s that have further clues.

Another test is to create a simple test.aspx in the root folder of the site and make sure that the IIS site works well too.

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  • Here is the error...NOTE. I changed the Application pool to run in Classic mode (the dev server also run in this mode) no more 500 errors. I get a blank page and when i check the headers returned i get 404 error. He is the log from the IIS 7.5 server: 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
    – Juw
    Oct 3, 2012 at 15:11
  • That's a 404.2 error code which suggests that it's something with the ISAPI settings: forums.iis.net/t/1160971.aspx. What's the substatus code for the 500 error back in Integrated mode? Also, testing with a test.aspx page is worth doing early on too.
    – Scott Forsyth
    Oct 3, 2012 at 16:19
  • Thx guys for the help. Check my initial post under Update 2.
    – Juw
    Oct 4, 2012 at 9:05
  • Hi Juw. That would do it. Excellent, glad you were able to track it down.
    – Scott Forsyth
    Oct 4, 2012 at 14:56

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