Had the problem resolve. I was using WIndows 8.1 . The C++ SDK will only operate with the libraries under 10.0

This really puzzles me. I am runnig exacty your same code but returns errors in my computer.

In[1]:= Needs["CCompilerDriver`"]
CCompilers[]

Out[2]= {{"Name" -> "Visual Studio", 
  "Compiler" -> 
   CCompilerDriver`VisualStudioCompiler`VisualStudioCompiler, 
  "CompilerInstallation" -> 
   "C:\\Program Files (x86)\\Microsoft Visual \
Studio\\2017\\Community", 
  "CompilerName" -> Automatic}, {"Name" -> "Visual Studio", 
  "Compiler" -> 
   CCompilerDriver`VisualStudioCompiler`VisualStudioCompiler, 
  "CompilerInstallation" -> 
   "C:\\Program Files (x86)\\Microsoft Visual \
Studio\\2017\\BuildTools", "CompilerName" -> Automatic}}

In[3]:= hello = CreateExecutable["
        // Hello100.cpp : Defines the entry point for the console \
application.
        //#include \"stdafx.h\"
        #include <iostream>
        // i/o example
        // stringstreams
        #include <string>
        #include <sstream>
        using namespace std;
        int main()
        {
            string mystr;
            float price = 0;
            int quantity = 0;
            int next;
            cout << \" Enter price : \";
            //getline(cin, mystr);
            //stringstream(mystr) >> price;
            cout << \" Enter quantity : \";
            //getline(cin, mystr);
            //stringstream(mystr) >> quantity;
            cout << \" Total price : \" << price * quantity << endl;
            //cin >> next;
            return 0;
       }
    ", "hellomyfirst", Language -> "C++"]



During evaluation of In[3]:= CreateExecutable::cmperr: Compile error: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\include\crtdefs.h(10): fatal error C1083: Cannot open include file: 'corecrt.h': No such file or directory

Out[3]= $Failed

In[4]:= Import["!" <> QuoteFile[hello], "Text"]

During evaluation of In[4]:= StringJoin::string: String expected at position 2 in !<>QuoteFile[$Failed].

During evaluation of In[4]:= Import::chtype: First argument !<>QuoteFile[$Failed] is not a valid file, directory, or URL specification.

Out[4]= $Fail

I notice that you are using the the 2017 Profesional and the VS 2012. Is there anything reported from 2017 COmmunity that might limit this compilation?

In[25]:= Needs["CCompilerDriver`"] CCompilers[]

hello = CreateExecutable["

      // Hello100.cpp : Defines the entry point for the console application.

      //#include \"stdafx.h\"
      #include <iostream>
      // i/o example
      // stringstreams
      #include <string>
      #include <sstream>
      using namespace std;

      int main()
      {
          string mystr;
          float price = 0;
          int quantity = 0;
          int next;
          cout << \" Enter price : \";
          //getline(cin, mystr);
          //stringstream(mystr) >> price;
          cout << \" Enter quantity : \";
          //getline(cin, mystr);
          //stringstream(mystr) >> quantity;
          cout << \" Total price : \" << price * quantity << endl;
          //cin >> next;
          return 0;
     }
  ", "hellomyfirst", Language -> "C++"]



Out[26]= {{"Name" -> "Visual Studio", 
  "Compiler" -> 
   CCompilerDriver`VisualStudioCompiler`VisualStudioCompiler, 
  "CompilerInstallation" -> 
   "C:\\Program Files (x86)\\Microsoft Visual \
Studio\\2017\\Professional", 
  "CompilerName" -> Automatic}, {"Name" -> "Visual Studio", 
  "Compiler" -> 
   CCompilerDriver`VisualStudioCompiler`VisualStudioCompiler, 
  "CompilerInstallation" -> 
   "C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\", 
  "CompilerName" -> Automatic}}

Out[27]= "C:\\Users\\scheren\\AppData\\Roaming\\Mathematica\\\
SystemFiles\\LibraryResources\\Windows-x86-64\\hellomyfirst.exe"

In[30]:= Import["!" <> QuoteFile[hello], "Text"]

Out[30]= " Enter price :  Enter quantity :  Total price : 0"

Do you mean that I need to eliminate the comment lines or something else?

I am not sure what you mean.. DO you mean to eliminate the comment lines? Or something else?

I had to remove getline and stringstream lines since they were waiting for input and hanging the kernel. I would look at this post for some info on how to open a pipe as an alternative: https://stackoverflow.com/questions/6462275/mathematica-and-c-c-exchanging-data

It be great if you post the code since I am not able follow the changes that you proposed here .