Wrap a WCF Service with a DLL

Hello All, 

I am trying to call a wcf service from a software called OnBase. This software does not support structured WSDL's. since my WSDL is structured this is problematic.  

My options, as I understand them, are:

1.) Rewrite the wcf service so that it will compile a flat WSDL.

2.) I can run a vb script from the OnBase software that will allow me to call a dll that references the service. 

I have looked into option one and have decided since so many other systems make calls to the service rewriting for this one antiquated version of OnBase would only add to my problems

This leaves me with wrapping the wcf service in a dll and exposing the dll to a vb script. I only need to expose one call in the wcf service but I don't have the slightest clue where to start. I have researched and found similar questions but I am just not getting a lot from them. I created a project, referenced the service and can make calls to the service but I am not sure where to go from here. Any help would be greatly appreciated, thank you for your time and effort on my behalf. 

Regards, 

A Learning Developer

namespace AWSWrapper
{
    public class Class1
    {
        public void ChangePrintStatus()
        {
            DateTime dat = DateTime.Now; string str = "";
            DevAWS.FundServiceClient client = new DevAWS.FundServiceClient();

            var tst = client.UpdatePrintStatus("Param1", "Param2", "Param3", "Param4"); 
        }
    } 
}