Silverlight, WCF Service, and Out of Browser Experience

I have the following code that I run to determine the address for my WCF service in my Silverlight application.

Public Sub New()
        myBinding = New BasicHttpBinding
        myBinding.ReceiveTimeout = New TimeSpan(0, 59, 0)
        myBinding.SendTimeout = New TimeSpan(0, 59, 0)
        myBinding.OpenTimeout = New TimeSpan(0, 1, 0)
        myBinding.CloseTimeout = New TimeSpan(0, 1, 0)
        myBinding.MaxBufferSize = 2147483647
        myBinding.MaxReceivedMessageSize = 2147483647

        address = New EndpointAddress(New Uri(Application.Current.Host.Source, "../service/EKService.svc"))
        proxy = New EKServiceClient(myBinding, address)    
    End Sub

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My application currently runs fine if I am running it in the browser, but if I try to run it out of the browser the application returns a NotFound error when trying to get information from the WCF service.  I am currently trying to run the application through Visual Studio 2010 and stepping through the code shows that I am still getting the valid url for the WCF service.  Additionally, I am able to successfully open the link in a browser window.  As a result, I am unsure why I am having this problem.

My ClientAccessPolicy.xml file is:

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
	<cross-domain-access>
		<policy>
			<allow-from http-request-headers="*">
				<domain uri="http://*"/>
				<domain uri="https://*" />
			</allow-from>
			<grant-to>
				<resource include-subpaths="true" path="/"/>
			</grant-to>
		</policy>
	</cross-domain-access>
</access-policy>

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kmcbreartyAsked:
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Kyle AbrahamsConnect With a Mentor Senior .Net DeveloperCommented:
ensure you client access policy is in the root of your website (eg: c:\inetpub\wwwroot) and not the application itself.

You're running it out of browser on the same machine?  Have you tried using fiddler to see what's going on?
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Kyle AbrahamsSenior .Net DeveloperCommented:
address = New EndpointAddress(New Uri(Application.Current.Host.Source, "../service/EKService.svc"))

".." holds no  reference out of browser.  

If running out of browser you may want to write a text configuration file that you can read from later on.  

The you can do something like:

if in_browser then
  address = New EndpointAddress(New Uri(Application.Current.Host.Source, "../service/EKService.svc"))
else
   address = readUriFromFile()
end if

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Kyle AbrahamsSenior .Net DeveloperCommented:
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ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

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kmcbreartyAuthor Commented:
Did you happen to read the part where I explained that I stepped through the code and the address was resolved correctly?
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kmcbreartyAuthor Commented:
Also, information from the link that you provided also indicated that it should be able to resolve relative URIs.


The origin parameter indicates the URI of the application's site of origin. This is required to assign security privileges, such as access to isolated storage. It also provides a base URI that the application can use to resolve relative URIs, access remote resources, and perform application updates.
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kmcbreartyAuthor Commented:
Due to time constraints I went another direction but I appreciate your help.  You provided valid information but I am uncertain if it would have completely solved the issue that I was having.
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