Newbie help..... DOS executable program

Hi group! I’m new to the group and I’m looking for a client/server framework and I believe that Meteor/Node.js is my solution from the research I have done. Below are my requirements about what I need.

I’m in the process of converting a software package that uses a terminal emulator using telnet to connect to a database on a Windows Server box. The entire software package has over 800 screens and over 4000 DOS executable programs. Example: a Customer Maintenance screen that has 30 input fields is associated with 30 DOS programs.

I want a user to open a screen, put focus on a field, enter data in the field, have the client send the data to the server, execute the proper DOS program, have the server return any data.

Thank you in advance…