Why does the CreateProcess() function not work? - c++

Question

I am trying to call the CreateProcess function to execute some powershell command. The function doesnt return any errors but it doesnt execute the command (there is no file created after running the app). Here is the code.
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// Start the child process.
if (!CreateProcess(NULL, // No module name (use command line)
const_cast<LPTSTR>(TEXT("powershell.exe -command echo Hello > D:\\out.txt")), // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi) // Pointer to PROCESS_INFORMATION structure
)
{
std::cout << ("CreateProcess failed (%d).\n", GetLastError());
}
WaitForSingleObject(pi.hProcess, INFINITE);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);