Conditions
Standard if statement syntax:
messagebox "Do you want to patch the program?", 4, "Patch", retval
; If "Yes" is clicked (retval = 6)
messagebox "You selected Yes", 16, "Yes", retval1, if retval = 6
; If "No" is clicked (retval = 7)
messagebox "You selected No", 16, "No", retval2, if retval = 7