VB.Net read file content -

i'm trying make simple program message box executable runs in "autorun.inf"

example:

[autorun] open=setup.exe icon=setup.exe,0 

how define line says if it's not second line, 5th, mean after text..

open=setup.exe 

and trim file name , it's extension?

    dim filepath string = "e:\run.inf"     dim inf string = my.computer.filesystem.readalltext(filepath)     inf = inf.tolower     dim startindex integer = inf.indexof("open=") + 5     dim endindex integer = inf.indexof(vbcrlf, startindex)     dim executablename string = ""      if startindex = 4         msgbox("the executable file name not found @ file :" & vbcrlf & filepath)     else         if endindex = -1             executablename = inf.substring(startindex)         else             executablename = inf.substring(startindex, endindex - startindex)         end if         msgbox("the executable name " & chr(34) & executablename & chr(34))     end if 

first read text of inf file , change case lower can search through lower "open=". , define start index , end index of executable name start after string "open=" , end before newline vbcrlf. , executable name , show in msgbox.