I Nadya, I used it with VFP7 w/SP1.

Here is some dummy code I tested it with successfully:

set LIBRARY TO vfpevent.fll additive
*LIST STATUS
#INCLUDE foxpro.h
LOCAL lnResult
lnResult=EventMBox("Do you want to continue?",;
    MB_YESNOCANCEL + MB_ICONQUESTION + MB_DEFBUTTON3,;
    "Please choose Continue or Quit",;
    "&Continue",;
    "&Quit",;
    "&I don't know!")
    
DO CASE
CASE lnResult=IDYES
    WAIT WINDOW "You choice to continue"
CASE lnResult=IDNO
    WAIT WINDOW "You chose to Quit"
CASE lnResult=IDCANCEL
    WAIT WINDOW "You said you don't know!"
ENDCASE

SET LIBRARY TO

>Hi again, Tracy.
>
>I've read the accomponied document with this class and it doesn't tell us, for which version of VFP does this class work. What VFP version did you try?
>
>Since this is only fll, no source code, it may depend on external DLLs, which could differ from VFP6 to VFP7.
>
>>I did Nadya! :0)
>>Tracy
>>
>>>Hi Tracy,
>>>
>>>You can put your comment into Downloads area.
>>>
>>>>Thanks Sergey, I just tested it and it works great!
>>>>Tracy
>>>>
>>>>>>I recall a thread a while ago that discusses a way to use a messagebox and allow for changing the captions on the buttons to something other than ok/cancel or yes/no. However I can not locate it by searching. Does anyone know of a way to do this?
>>>>>>
>>>>>>TIA,
>>>>>>Tracy
>>>>>
>>>>>See file #9676.