BOOL CreateProcessA(
  LPCSTR                lpApplicationName,                //要创建的进程名称 完整路径+exe
  LPSTR                 lpCommandLine,                    //命令行参数.
  LPSECURITY_ATTRIBUTES lpProcessAttributes,   //是否进行继承进程句柄
  LPSECURITY_ATTRIBUTES lpThreadAttributes,    //是否进行继承线程句柄
  BOOL                  bInheritHandles,                    //是否进行继承句柄
  DWORD                 dwCreationFlags,                 //程序创建的标志.
  LPVOID                lpEnvironment,                     //父进程环境变量
  LPCSTR                lpCurrentDirectory,               //父进程当前目录.自己可以设置
  LPSTARTUPINFOA        lpStartupInfo,                //启动信息结构体.
  LPPROCESS_INFORMATION lpProcessInformation//进程信息结构体
);

typedef struct _STARTUPINFOA {
  DWORD  cb;                                      表示当前结构体的大小 重要成员
  LPSTR  lpReserved;
  LPSTR  lpDesktop;
  LPSTR  lpTitle;
  DWORD  dwX;                                   创建进程的x位置.y位置大小...
  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;
} STARTUPINFOA, *LPSTARTUPINFOA;

typedef struct _PROCESS_INFORMATION {
  HANDLE hProcess;                                       返回的进程句柄
  HANDLE hThread;                                        返回的线程句柄
  DWORD  dwProcessId;                                 返回的进程ID
  DWORD  dwThreadId;                                  返回的线程ID
} PROCESS_INFORMATION, *PPROCESS_INFORMATION, *LPPROCESS_INFORMATION;

#include int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPWSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    
    TCHAR wszStartUpFileName[] = TEXT("D:\\calc.exe");  //要启动的程序路径
    TCHAR wszStartUpFileCommandLine[] = TEXT("");       //命令行参数
    
    STARTUPINFO si;                                                       //启动信息结构体
    PROCESS_INFORMATION pi;                                      //进程信息结构体
    ZeroMemory(&si, sizeof(si));                                      //清零
    ZeroMemory(&pi, sizeof(pi));

    si.cb = sizeof(si);                                                      //启动信息结构体赋值为当前结构体大小

    CreateProcess(                                                          //创建进程
        wszStartUpFileName,
        wszStartUpFileCommandLine,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        NULL,
        &si,
        &pi
    );

    CloseHandle(pi.hProcess);                                         //不使用的句柄关闭
    CloseHandle(pi.hThread);
}