IIS7 + WCF + Silverlight problems - wcf

Question

I've been building a silverlight application and a WCF service for a while now and recently tried to host them in IIS7.
I installed IIS7 on Windows Server 2008 R2 and added these two application to my default website. I am having a number of problems so im hoping one of you can help out...
1) The silverlight and WCF service applications do not work with pass-through authentication. I need to "connect as" the administrator server account when setting up the application. I read online that you should only need to use the "connect as" field when you are connecting to another computer. If i dont supply the admin credentials i get this error. Do i have to set up permissions somewhere else?
HTTP Error 500.19 - Internal Server Error The requested page cannot be
accessed because the related configuration data for the page is
invalid. Detailed Error Information Module IIS Web Core Notification
BeginRequest Handler Not yet determined Error Code 0x80070005 Config
Error Cannot read configuration file due to insufficient permissions
Config File \?\C:\Users\Administrator\Documents\My Dropbox\Research
Masters\Project\WCFService\Website\web.config Requested URL
http:://localhost:80/WCFService/Service.svc Physical Path
C:\Users\Administrator\Documents\My Dropbox\Research
Masters\Project\WCFService\Website\Service.svc Logon Method Not yet
determined Logon User Not yet determined Config Source -1:
0: Links and More Information This error occurs when there is a
problem reading the configuration file for the Web server or Web
application. In some cases, the event logs may contain more
information about what caused this error.
2) Visual studio generated 2 webpages to run my silverlight application (.html and .aspx). When I am running the silverlight application (connected as admin) I can navigate to the .html page, no problem. When I try to open the .aspx file i get the following error
Server Error in '/Platform' Application.
Access is denied.
Description: An error occurred while accessing the resources required
to serve this request. You might not have permission to view the
requested resources.
Error message 401.3: You do not have permission to view this directory
or page using the credentials you supplied (access denied due to
Access Control Lists). Ask the Web server's administrator to give you
access to 'C:\Users\Administrator\Documents\My Dropbox\Research
Masters\Project\Platform\Website\PlatformTestPage.aspx'.
Version Information: Microsoft .NET Framework Version:4.0.30128;
ASP.NET Version:4.0.30128.1
3) The WCF service runs fine (again, connected as admin) until i restart the server. When i try to run the WCF service after a reboot, the mysql assembly seems to be missing from the solution. If i just rebuilt the solution and run the service again... it works (until next restart). Whats causing this error?
Solution here - http://tinypic.com/view.php?pic=5yasqx&s=5
Server Error in '/WCFService' Application.
Could not load file or assembly 'MySql.Data, Version=6.2.2.0,
Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its
dependencies. Access is denied.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.
Exception Details: System.IO.FileLoadException: Could not load file or
assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral,
PublicKeyToken=c5687fc88969c44d' or one of its dependencies. Access is
denied.
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
Assembly Load Trace: The following information can be helpful to
determine why the assembly 'MySql.Data, Version=6.2.2.0,
Culture=neutral, PublicKeyToken=c5687fc88969c44d' could not be loaded.
WRN: Assembly binding logging is turned OFF. To enable assembly bind
failure logging, set the registry value
[HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There
is some performance penalty associated with assembly bind failure
logging. To turn this feature off, remove the registry value
[HKLM\Software\Microsoft\Fusion!EnableLog].
Stack Trace:
[FileLoadException: Could not load file or assembly 'MySql.Data,
Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or
one of its dependencies. Access is denied.]
System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String
codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint,
StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean
forIntrospection, Boolean suppressSecurityChecks) +0
System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName
assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark,
Boolean forIntrospection, Boolean suppressSecurityChecks) +567
System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString,
Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean
forIntrospection) +192 System.Reflection.Assembly.Load(String
assemblyString) +35
System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String
constructorString, Uri[] baseAddresses) +243
System.ServiceModel.HostingManager.CreateService(String
normalizedVirtualPath) +1423
System.ServiceModel.HostingManager.ActivateService(String
normalizedVirtualPath) +50
System.ServiceModel.HostingManager.EnsureServiceAvailable(String
normalizedVirtualPath) +1132
[ServiceActivationException: The service '/WCFService/Service.svc'
cannot be activated due to an exception during compilation. The
exception message is: Could not load file or assembly 'MySql.Data,
Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or
one of its dependencies. Access is denied..]
System.Runtime.AsyncResult.End(IAsyncResult result) +889824
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult
result) +179150
System.Web.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult
ar) +107
Version Information: Microsoft .NET Framework Version:4.0.30128;
ASP.NET Version:4.0.30128.1
Thats about it, hope someone reads this message, I wasted most of the weekend trying to fix these problems on my own... thanks

Answer 1

My suggestions:
1) Check your web application folder's permissions. You should edit the permissions on your web application folder so that the IIS user can read from the folder.
So you should open the folder properties dialog for the folder in the windows explorer and check if the application pool user has at least read permissions. If you didn't provide another user for the application pool, then the default user should be IIS_IUSRS.
2) Check if the asp.net is enabled in your system by running:
If you have .Net 4 installed in your system:
"%WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe" –i
Otherwise:
"%WINDIR%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe" –i
The above command will register/repair the your .Net installation with the IIS.
3) Is your mysql dll locate in the bin folder? I would check if you also have permissions to read this folder. If the dll is not in the same folder as your application dll, check if the dll is installed in the GAC.
Regards,

Answer 2

1)Give permissions to the folder for the IIS_IUSRS group.
Also see if the application pool for the application in IIS manager->"Application Pools" has the Identity set as "LocalSystem". For me it was "NetworkService", setting it to "LocalSystem" solved it.

Answer 3

You must not be able to host silverlight applications with IIS7.
Try hosting your silverlight app on an apache server with a php / html script.
Hope that helps mate
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