If your PC is running on 32/64 bit Windows OS, then the older 16-bit application (output by Turbo C++) would not run on it. Here the steps to run a 16-bit .exe files output by Turbo C++.
Step 1. Download and Install the latest version of Turbo C++ from here.
Step 2. Open Turbo C++
Step 3. Click on Open Pre-Compiled EXE File...
Step 4. Select the exe file which you want to open.
Step 5. Click Open Note - You can only execute exe file from
Step 6. exe file will be execute.