How to run other executable file using c program

Question

I have an executable file at location D:/a.exe. I changes its extension to a.txt. Now I would like to execute it using c program. i am following c code.

#include<windows.h>

system("start D:/a.txt");
// or
system("D:/a.txt");

The program doesn't execute it but open it into Notepad. How do I execute a.txt which is in reality is an executable file?

Watch Out This Question You Will Find Solution... stackoverflow.com/questions/13541956/… — Dhaval
– Dhaval, Commented Nov 28, 2014 at 13:27
Use CreateProcessW on Windows and the exec family of functions on Unix. — rubenvb
– rubenvb, Commented Nov 28, 2014 at 13:27
This is not a C question, but one about DOS/Windows. I added tags. — meaning-matters
– meaning-matters, Commented Nov 28, 2014 at 13:31
You'll need to provide more information about the OS version and settings. system uses the command interpreter that's set in the COMSPEC environment variable. The default is cmd, which always tries CreateProcess before falling back on ShellExecuteEx, so it should work; it does for me in Windows 7. — Eryk Sun
– Eryk Sun, Commented Nov 29, 2014 at 1:10

xpirt · Accepted Answer · 2014-11-28 13:32:12Z

0

First you rename it then you launch it. You cannot launch a txt extension as an executable file.

#include<windows.h>

char oldname[] = "D:/a.txt";
char newname[] = "D:/a.exe";

ret = rename(oldname, newname);

if(ret == 0) 
{
    system("start D:/a.exe");
}

edited Nov 28, 2014 at 13:32

answered Nov 28, 2014 at 13:25

xpirt

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