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Editorial Team
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Asked: 2026-05-18T23:55:09+00:00

I’m trying to use the PowerShell command New-WebServiceProxy to create a connection to a

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I’m trying to use the PowerShell command New-WebServiceProxy to create a connection to a WCF Service.

I’ve got the WCF Services up and running (and working from C# code), but the following PowerShell code fails:

PS C:\>$uri = "http://localhost/Person.svc?wsdl"
PS C:\>$client = New-WebServiceProxy -Uri $uri

New-WebServiceProxy : Exception has been thrown by the target of an invocation
At line:1 char:30
+ $client = New-WebServiceProxy <<<<  -Uri $uri
+ CategoryInfo          : NotSpecified: (:) [New-WebServiceProxy], TargetInvocationException
+ FullyQualifiedErrorId : System.Reflection.TargetInvocationException,Microsoft.PowerShell.Commands.NewWebServiceProxy

What could be the problem here?

Edit; Don’t know if it is relevant, but the Services uses some custom SOAP headers for credentials.

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1 Answer

  1. Editorial Team

    Try executing the svcutil.exe utility from the Windows SDK with the /validate parameter. Look at the utilities usage for details on the parameter usage for /validate. Note that in a pinch you can just use svcutil.exe to create the proxy class which you would then compile. Back in the day before PowerShell 2.0 and New-WebProxy, this is how we created web service proxies.

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