Starthere:
Gui, +AlwaysOnTop
Gui, Margin, 5,5
Gui, Font, s8 Bold, Verdana
Gui, Add, Text,y30 r10 w492 Center vFile_and_Path,Drag && Drop here. `n`n (  f11 to show,  f12 to minimize, esc to exit  )
Gui, Show, w500 h100, Drag & Drop to Start program
Return

GuiEscape:
ExitApp
Return

GuiClose:
ExitApp
Return

f11::
goto, starthere
return

F12::
Gui, Destroy
return

GuiDropFiles:
;GuiControl,,File_and_Path,% A_GuiControlEvent
Run, %A_GuiControlEvent%
gui, destroy
Return