Hi Agnes,

you've got a point. Perhaps I am a bit too focused on looking behind the scene. :-)

I will reduce it to this:

FUNCTION TestWin32ApiFunctionality
  LOCAL llReturn as Boolean
  llReturn = .F.
  TRY
    * Declare WIN32API call
    DECLARE INTEGER GetEnvironmentStrings IN WIN32API
    llReturn = .T.
  CATCH
    * Throw message
    MESSAGEBOX([Unable to declare..blabla],0+16+0,[Info])
  ENDTRY
  RETURN llReturn
ENDFUNC