Adobe Plugin: FileLoadException: Could not load file or assembly 'System.ServiceModel.Internals, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Unspecified error (Exception from HRESULT: 0x80004005 (E_FAIL))

Question

I created one adobe plugins to work from Adobe Reader/Acrobat using Adobe Acrobat SDK and that was built on .net 3.5 version. On conversion of .net framework version from v3.5 to v4.5, we are now getting error while the Adobe Reader/Acrobat is starting and plugins are not working. While making the log we found following exception:
System.IO.FileLoadException: Could not load file or assembly 'System.ServiceModel.Internals, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Unspecified error (Exception from HRESULT: 0x80004005 (E_FAIL))
File name: 'System.ServiceModel.Internals, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
   at System.ServiceModel.Channels.Binding.set_ReceiveTimeout(TimeSpan value)
   at MyClass.Connect()
=== Pre-bind state information ===
LOG: User = domainname\username
LOG: DisplayName = System.ServiceModel.Internals, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
(Fully-specified)
LOG: Appbase = file:///C:/Program Files (x86)/Adobe/Reader 11.0/Reader/
LOG: Initial PrivatePath = NULL
Calling assembly : System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089.
===
LOG: This bind starts in default load context.
LOG: No application configuration file found.
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Binding succeeds. Returns assembly from C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Internals\v4.0_4.0.0.0__31 bf3856ad364e35\System.ServiceModel.Internals.dll.
LOG: Assembly is loaded in default load context.
The C# code is written as follows:
EndpointAddress endpoint = new EndpointAddress("net.pipe://localhost/MyApp/");
NetNamedPipeBinding binding = new NetNamedPipeBinding(NetNamedPipeSecurityMode.None);
binding.ReceiveTimeout = TimeSpan.MaxValue;
IAcroServer cserver = ChannelFactory<IAcroServer>.CreateChannel(binding, endpoint);
Can anyone help me to find the reason and resolution of the problem I am facing. Thanks in advance.

Answer 1

Yes plugin is written using C++ and that plugin is connecting with MyApp. Previously the plugin was working fine while the connection WCF service was in .net version 3.5 but on change of .net version to v4.5 is throwing the exception. This wcf service developed on C#.