How do I start an application process in a new desktop (Desktop 2) with CPP and CreateProcess

// Module_5_Processes.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
#include <Windows.h>
#include <stdio.h>
#include <iostream>
#define NULL 0
int main()
{
    //NOTES
    /*
    BOOL CreateProcessW(
      [in, optional]      LPCWSTR               lpApplicationName, //const wchar_t AppName = "cmd.exe"; //-> the `C` in LPCWSTR measn `const` 
      [in, out, optional] LPWSTR                lpCommandLine, //wchar_t  
      [in, optional]      LPSECURITY_ATTRIBUTES lpProcessAttributes, //Null means default security attributes
      [in, optional]      LPSECURITY_ATTRIBUTES lpThreadAttributes, //Null means default security attributes
      [in]                BOOL                  bInheritHandles,
      [in]                DWORD                 dwCreationFlags,
      [in, optional]      LPVOID                lpEnvironment,
      [in, optional]      LPCWSTR               lpCurrentDirectory,//If the Exe you are running depends on DLLs that are in it's Current folder(C:\some-path\app.exe), specify the absolute path to the EXE -  C:\some-path\
      [in]                LPSTARTUPINFOW        lpStartupInfo,
      [out]               LPPROCESS_INFORMATION lpProcessInformation // No need to zero out this structure as it's only an OUT param, but do it anyway
    );
    typedef struct _STARTUPINFOW {
      DWORD  cb;
      LPWSTR lpReserved;
      LPWSTR lpDesktop;//si.lpDesktop =  "Desktop 2" // to start the application in Desktop 2. or "Winstaion1\Desktop 2"
      LPWSTR lpTitle;
      DWORD  dwX;
      DWORD  dwY;
      DWORD  dwXSize;
      DWORD  dwYSize;
      DWORD  dwXCountChars;
      DWORD  dwYCountChars;
      DWORD  dwFillAttribute;
      DWORD  dwFlags;
      WORD   wShowWindow;
      WORD   cbReserved2;
      LPBYTE lpReserved2;
      HANDLE hStdInput;
      HANDLE hStdOutput;
      HANDLE hStdError;
    } STARTUPINFOW, *LPSTARTUPINFOW;
    typedef struct _PROCESS_INFORMATION {
        HANDLE hProcess;
        HANDLE hThread;
        DWORD  dwProcessId;
        DWORD  dwThreadId;
    } PROCESS_INFORMATION, *PPROCESS_INFORMATION, *LPPROCESS_INFORMATION;
    */
    STARTUPINFO si = { sizeof(si) };
    //si.cb = {sizeof(si)};
    WCHAR Desktop[] = L"winsta0\\Desktop 2";
    si.lpDesktop = Desktop;
    //PROCESS_INFORMATION pi = { sizeof(pi) };//THis failed
    //STARTUPINFOEXW siex;
    //ZeroMemory(&siex, sizeof(siex));
    //siex.StartupInfo.cb = sizeof(siex);
    //siex.StartupInfo.lpDesktop = (LPWSTR)L"Desktop 2";
    
    PROCESS_INFORMATION pi;
    WCHAR appName[] = L"cmd.exe";
    SECURITY_ATTRIBUTES sa;
    sa.nLength = { sizeof(sa) };
    //if (::CreateProcessW(NULL, appName, NULL, NULL, FALSE, CREATE_NEW_CONSOLE | EXTENDED_STARTUPINFO_PRESENT, NULL, NULL, (LPSTARTUPINFOW)&siex, &pi)) {
    if (::CreateProcessW(NULL, appName, NULL, NULL, FALSE, NORMAL_PRIORITY_CLASS | CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)) {
        printf("Paint started with PID: %lu", pi.dwProcessId);
        ::WaitForSingleObject(pi.hProcess, INFINITE);
        /*
        BOOL GetExitCodeProcess(
          [in]  HANDLE  hProcess,
          [out] LPDWORD lpExitCode
        );
        */
        DWORD exitCode;
        ::GetExitCodeProcess(pi.hProcess, &exitCode);
        printf("Exit Code: %lu", exitCode);//Obeserve the change in exit code when terminating the process via the GUI close button and when terminating with TAsk Maanger etc...
        ::CloseHandle(pi.hProcess);
        ::CloseHandle(pi.hThread);
    }
    else {
        printf("Process creation Failed: %u", ::GetLastError());
    }
    std::cout << "Hello World!\n";
    return 0;
}
// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu
// Tips for Getting Started: 
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file