Migrate existing Web Service and client side .dll to WCF

Migrate existing Web Service and client side .dll to WCF. This is an existing Web Service that is used to send send and receive binary files from a client’s VB6 application. The Web Service and Client .dll are written in VB.NET and the client .dll is complied for use by a COM object (a VB6 Application). I have attached the original Web Service specifications for review. I will supply the .net code and related files to reproduce the current working project. Step 1: Re-Write the older Web Service into a WCF Web Service and test it out with a .net test application. I have no problems if the developer wants to re-write it in C# or leave it in VB.NET. Step 2: Include the new functionality into the WCF. Here is what we need to be able to do: 1) Change the default port number used by the client to connect to the web service 2) Give the client the ability to send and receive the binary files through the clients Proxy. Must include the ability to get through the following: a) Bluecoat b) Gauntlet c) Interlock d) OPEN Command Sent e) SITE Command Sent 3) Parameter to the call to the client side .dll to do the above. We will need the parameters below, plus whatever is needed to select the port and proxy settings. Current calls to client side .dll. SendFile() and GetFile(): ans = [login to view URL](FileName, FileLocation, UserName, Password, ClientNo, CompDesc,wsLocation) This will call to the client side .dll will send a binary file to our server through the Web Service ans = 0 if unsuccessful, 1 if successful Parameters: FIleName: File that needs to be sent FIleLocation: Location of the file at the client end UserName: Web Service Authentication. From Web Service [login to view URL] Password: Web Service Authentication. From Web Service [login to view URL] ClientNo: Client Number (Pass through to Web Service) CompDesc: Company Description (Pass through to Web Service) wsLocation: Actual address of the web service on our server ans = [login to view URL](FileName, FileLocation, UserName, Password, ClientNo, wsLocation) This will call to the client side .dll will request a binary file to from server through the Web Service ans = 0 if unsuccessful, 1 if successful Parameters: FIleName: File that needs to be got FIleLocation: Location to put the file on the client end UserName: Web Service Authentication. From Web Service [login to view URL] Password: Web Service Authentication. From Web Service [login to view URL] ClientNo: Client Number (Pass through to Web Service) wsLocation: Actual address of the web service on our server