i have made in my Bots the InetGet & IniRead Funk and Upload a Textfile on your homepage maybe "www.yourprog.de/data.txt " and check the var.. its better than you can do it like so:
0 = Offline - InetGet("...") and if $InetGet = 0 then exit
1 = Online - InetGet("...") and if $InetGet = 1 then nothing maybe Sleep(1)
2 = Update - InetGet("...") and if $InetGet = 2 then InetGet(your File.exe)