Create a Child process ....... (Run only codeBlock GNU GCC compiler )

CreateAprocess.C++

#include<stdio.h>
#include<Windows.h>

int main(VOID){
	STARTUPINFO si;
	PROCESS_INFORMATION pi;

	// Allocate memory

	ZeroMemory(&si, sizeof(si));
	si.cb = sizeof(si);
	ZeroMemory(&pi, sizeof(pi));

	if (!CreateProcess(NULL, "mspaint.exe", NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
	{
		fprintf(stderr, "Create Process Failed");
		return -1;
	}

	// parent will wait for the child to complete 
	WaitForSingleObject(pi.hProcess, INFINITE);
	printf("Child Complete");

	// Close Handles

	CloseHandle(pi.hProcess);
	CloseHandle(pi.hProcess);


}

include<stdio.h>

include<Windows.h>

int main(VOID){
STARTUPINFO si;
PROCESS_INFORMATION pi;
char szCmdline[] = "mspaint.exe";
// Allocate memory

ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
//LPTSTR szCmdline = TEXT("C:\Windows\system32\mspaint.exe");
if (!CreateProcess(NULL, szCmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
{
fprintf(stderr, "Create Process Failed");
return -1;
}

// parent will wait for the child to complete
WaitForSingleObject(pi.hProcess, INFINITE);
printf("Child Complete");

// Close Handles

CloseHandle(pi.hProcess);
CloseHandle(pi.hProcess);

return 0;
}

Try allocating the memory manually. VC++ has some problems with memory allocation.