void LogLine(char *formatstring, ...)
{
        char logTimeDate[20];
        time_t logNow;
        char logFile[128];
        time(&logNow);
        strftime(logTimeDate,(size_t)19,"%Y%m%d%H%M%S.log",localtime(&logNow));
        sprintf(logFile,"dupefile-%s.log",logTimeDate);
        va_list args;
        va_start(args, formatstring);
        char msg[1024];
        EnterCriticalSection(&CriticalSection);
        memset(msg, 0, sizeof(msg));
        FILE *theFile=fopen(logFile,"a+");
        // Esta es la linea vieja: FILE *logfile = fopen("dupefinder.log", "a+");
        _vsnprintf(msg, sizeof(msg), formatstring, args);
        fputs(msg, theFile);
        fclose(theFile);
        LeaveCriticalSection(&CriticalSection);
}