Hi Doug,

Can you please provide more detail on " a .Net frontend communicating through CCITCP"?

Is the .NET frontend written in COBOL or in some other language like C# or VB?
How are you using CCITCP? Are you making direct calls to the CCI API?
Does your application currently use a client-server approach where you have a piece running on a server somewhere?

Please provide as much detail as you can .
Thanks

Hi Chris,

Thanks for replying and apologies for the brief initial comment.

The frontend is written in C#

The original dev's likely took one of the examples supplied with Net Express and used the CCITCP2 daemon

It does use a client-server approach as per diagram

It looks like you are using the CSBind technology under Net Express to communicate between the client and the server machines. Is the server machine in this case Windows a Linux/Unix?

This is no longer documented in Visual COBOL, although it should still work, at least for native code. This client-server technology has been replaced by a more modern approach using Enterprise Server to host COBOL programs as SOAP or REST web services, which can be called by any client supporting Web Services.

Which parts do you wish to convert to managed code? 
Are you looking at keeping the current client-server architecture or replacing it with something new?

Thanks again Chris,

Unfortunately the dev's who developed the app are all long gone without leaving much documentation.

They did investigate upgrading to an early version of VC and mentioned implementing WCF but never got further.

As I'm the only person with COBOL experience and that was from the 90's it makes sense to convert it to managed code

as we are a Microsoft partner and have many dev's with C# experience.

My most recent experience has been Java so I'm not that familiar with .Net so having started to read the docs

I wasn't sure of the best approach. Plus I'm hoping to retire in the not too distant future so bit reluctant to stick with native.