   MessageBox fails with error 1411
  I''m not sure why but when i call MessageBox it keeps returning error1 1411 class does not exist. I can''t understand how a system class can not exist even though it does because if i run a another test program MessageBox works with no problem.It''s possible i may have some how squashed the class defintion for MessageBox somewhere in my code but i don''t know.Anyone have any ideas?Ron 
  Ok I figured out the problem the manifest resource i had to use Windows XP controls was the problem removing the resource fixed the problem.Odd though i suppose.