Error message when you try to use a dial-up connection in Windows IE7 on a Windows Vista based computer: "Cannot write to the telephone book"
On a Windows Vista-based computer, you try to connect to a network by using a dial-up connection in Windows Internet Explorer 7. However, you may receive an error message that resembles the following:
Cannot write to the telephone book.
Error 624 : Telephone book file cannot be updated.
The dial-up connection attempt is unsuccessful.