SDK 实现程序自删除

BOOL SelfDelete()
...{
    TCHAR szModule [MAX_PATH],
          szComspec[MAX_PATH],
          szParams [MAX_PATH];

    // get file path names:
    if((GetModuleFileName(0,szModule,MAX_PATH)!=0) &&
       (GetShortPathName(szModule,szModule,MAX_PATH)!=0) &&
       (GetEnvironmentVariable("COMSPEC",szComspec,MAX_PATH)!=0))
    ...{
        // set command shell parameters
        lstrcpy(szParams," /c del ");
        lstrcat(szParams, szModule);
        lstrcat(szParams, " > nul");
        lstrcat(szComspec, szParams);


        // set struct members
        STARTUPINFO        si=...{0};
        PROCESS_INFORMATION    pi=...{0};
        si.cb = sizeof(si);
        si.dwFlags = STARTF_USESHOWWINDOW;
        si.wShowWindow = SW_HIDE;

        // increase resource allocation to program
        SetPriorityClass(GetCurrentProcess(),
                REALTIME_PRIORITY_CLASS);
        SetThreadPriority(GetCurrentThread(),
            THREAD_PRIORITY_TIME_CRITICAL);

        // invoke command shell
        if(CreateProcess(0, szComspec, 0, 0, 0,CREATE_SUSPENDED|
                    DETACHED_PROCESS, 0, 0, &si, &pi))
        ...{
            // suppress command shell process until program exits
            SetPriorityClass(pi.hProcess,IDLE_PRIORITY_CLASS);
                        SetThreadPriority(pi.hThread,THREAD_PRIORITY_IDLE); 

            // resume shell process with new low priority
            ResumeThread(pi.hThread);

            // everything seemed to work
            return TRUE;
        }
        else // if error, normalize allocation
        ...{
            SetPriorityClass(GetCurrentProcess(),
                             NORMAL_PRIORITY_CLASS);
            SetThreadPriority(GetCurrentThread(),
                              THREAD_PRIORITY_NORMAL);
        }
    }
    return FALSE;
}