<?php
function DownloadFile($File)
{
    
    $FileName = basename($File);
    $FileExt = strtolower(substr(strrchr($FileName,"."),1));
    
    switch($FileExt)
        {
        case "exe":
                        $ctype = "application/octet-stream";
                        break;
        case "zip":
                        $ctype = "application/zip";
                        break;
        case "mp3":
                        $ctype = "audio/mpeg";
                        break;
        case "mpg":
                        $ctype = "video/mpeg";
                        break;
        case "avi":
                        $ctype = "video/x-msvideo";
                        break;
                case "wmv":
                        $ctype = "video/x-ms-wmv";
                        break;
        default:
                        $ctype="application/force-download";
    }
    
    header("Cache-Control:");
    header("Cache-Control: public");
    
    header("Content-Type: $ctype");
    if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
        {
        // IE Bug workaround
        $IEFileName = preg_replace('/\./', '%2e', $FileName, substr_count($FileName, '.') - 1);
        header("Content-Disposition: attachment; filename=\"$IEFileName\"");
    }
        else
        {
        header("Content-Disposition: attachment; filename=\"$FileName\"");
    }
    header("Accept-Ranges: bytes");
    
    $FileSize = 4653240;
    // If http_range is sent by browser (or download manager)
    if(isset($_SERVER['HTTP_RANGE']))
        {
        list($a, $Range) = explode("=",$_SERVER['HTTP_RANGE']);
        // If yes, download missing part
        str_replace($Range, "-", $Range);
        $FileSize2 = $FileSize-1;
        $new_length = $FileSize2-$Range;
        header("HTTP/1.1 206 Partial Content");
        header("Content-Length: $new_length");
        header("Content-Range: bytes $Range$FileSize2/$FileSize");
    }
        else
        {
        $FileSize2 = $FileSize-1;
        header("Content-Range: bytes 0-$FileSize2/$FileSize");
        header("Content-Length: ".$FileSize);
    }
    // Open the file
    $FP = fopen("$File","rb");
    // Seek to start of missing part
    fseek($FP,$Range);
    
    while(!feof($FP))
        {
        // Reset time limit so there's no timeout
        set_time_limit(0);
        print(fread($FP,1024*8));
        flush();
        ob_flush();
    };

    fclose($FP);
    exit;
}
// How to use it
DownloadFile("http://files.brothersoft.com/internet/download_managers/FlashGet_54668.exe");
?>