>thank Naomi your reply, I want to run a form with two diffrent user , and get user name in memory. I public "feeuser" I get this user in next form.
>
>simply I keep a record who is running this form.

lcCurrentUser = lower(STREXTRACT(SYS(0), "# ", ""))

#define SUPERUSERS "'khubaib','abid'"

if inlist(m.lcCurrentUser, &SUPERUSERS)
   ** Run my form
else
  =messagebox('Not authorized!')
  return .f.
endif

Not tested, just an idea.