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// http://blog.vckbase.com/jozu/archive/2006/02/10/1097.html#17627
//
// Delself.cpp: 删除正在运行的程序
//
// Coder Jozu

#include <windows.h>
#include <tchar.h>
#include <shlobj.h>

#pragma comment(lib, "Shell32.lib")

#define ERROR_RET  1
#define ERROR_SUC  0

#define COMSPEC         TEXT("COMSPEC")
#define ARGS_PREX       TEXT(" /c del ")
#define ARGS_ERR_REDIR  TEXT(" >NUL")

int main(int argc, char** argv)
{
    TCHAR szModuleName[MAX_PATH] = { 0 };
    TCHAR szCommand[MAX_PATH] = { 0 };
    TCHAR szParams[MAX_PATH] = { 0 };
   
    STARTUPINFO si = { sizeof(STARTUPINFO) };
    PROCESS_INFORMATION pi;
   
    if(!GetModuleFileName(NULL, szModuleName, MAX_PATH))
        return ERROR_RET;
    
    if(!GetShortPathName(szModuleName, szModuleName, MAX_PATH))
        return ERROR_RET;
   
    if(!GetEnvironmentVariable(COMSPEC, szCommand, MAX_PATH))
        return ERROR_RET;
   
    _tcscat(szCommand, ARGS_PREX);
    _tcscat(szCommand, szModuleName);
    _tcscat(szCommand, ARGS_ERR_REDIR);
    
    if(SetPriorityClass(GetCurrentProcess(),
        REALTIME_PRIORITY_CLASS))
    {
        if(SetThreadPriority(GetCurrentThread(),
            THREAD_PRIORITY_TIME_CRITICAL))
        {
            //
            if(CreateProcess(NULL, szCommand, NULL,
                NULL, FALSE, 0, NULL, NULL, &si, &pi))
            {
                SetPriorityClass(pi.hProcess, IDLE_PRIORITY_CLASS);
               
                SetProcessPriorityBoost(pi.hProcess, TRUE);
               
                SHChangeNotify(SHCNE_DELETE,
                    SHCNF_PATH, szModuleName, NULL);
                return TRUE;
            }
        }
        else
        {
            SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
        }
    }
    return ERROR_RET;
}

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