Win32 API Programming with Visual Basic by Steven Roman Following are the changes made in the 6/01 reprint. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification The following information has been added to the copyright page: "Cover Designer: Hanna Dyer" [30] The second code line under "Case 3" used to read: ByVal Var As Integer) It now reads: ByRef Var as Integer) (325) The first sentence of the second full paragraph used to read: "On the other hand, if the thread is thread-specific..." It now reads: "On the other hand, if the hook is thread-specific..."