php - How online builder works to build applications with user settings from stub file? VB.NET -

how online builder work , want make website user can change setting , online builder built application user setting stub file. , give download link.

i found online builder using eof tutorial. can solve problem

but shows error 'wrffvpn' not declared. may inaccessible due protection level. try solve failed.

stub:

dim filesplit string = "filesplit" private sub form1_load(byval sender system.object, byval e system.eventargs) handles mybase.load  dim arr() string = split(io.file.readalltext(application.executablepath), wrffvpn)  dim message string = arr(1)  msgbox(message) end sub 

and builder.php

<?php $filesplit = "filesplit"; //same filesplit string in vb.net program $message = $_get["message"]; $path = "dlme.exe"; copy("msgbox.exe", "dlme.exe"); $infotowrite = $filesplit . $message; file_put_contents($path, $infotowrite, file_append); echo 'a program display messagebox text "' .      $infotowrite.'" available <a href="' . $path . '">here</a> download.'; ?> 

but author not online , program not working properly.

full tutorial here http://pastebin.com/aiazsp2k

please solve problem.