Recompile legacy C++ source

We have some C++ source code from early 2000 we need to recompile to get it up and running on a new windows machine.
It is a server software that receives text files via FTP and creates packages in two different formats for download for users/clients. It also has some features for user account administration.
Task to be done:
1. Recompile and make it run on a modern windows server version (accessible from Internet).
2. Deliver it as a Microsoft Visual Studio project.
3. If we can test it on your server it will be subject for a project bonus, but it is not neccessary for accepting the project.
4. To be considered as a freelancer in this project I want you to name one of the uploaded files.

The uploaded files are two versions of the same code, I am not sure what differs between them I would appreciate a hint about what differs.

If the project is successful, more projects will come to change and develop the source code.
If you have knowledge on how to convert the source to Python or C#, please make an estimate if interested to do so in a separate project.

I do consider the basic task to recompile and package in a new VS-project to be quite easy.