Executing popen command without opening windows command window

Hello Everyone,

I want to execute command line option using _popen function as shown below:

FILE *fpipe = NULL;
fpipe = _popen(cmd.c_str(),_T("r"));
if(fpipe != NULL)
{
while(fgets(buff,sizeof(buff),fpipe)!=NULL)
{
//Some operation 
}
_pclose(fpipe);
fpipe = NULL;
}

It execute succesfully and give me correct output.
When this command execute It also shows command window. 

I don't want command prompt to open when my code execute. So please suggest me way to resolve this problem.

Thanks in advance,
Nilesh