If you mean replace the Yes, No, OK, etc., button text with a hyperlink
value, I don't believe you can. In the MsgBox() function, you are limited
to using the numeric button value or its equivalent constant. However, you
could create a small pop-up form with a command button or two and use the
HyperLink Address property of the button to insert the address. When you
enter a string for the button's caption, it will be formatted as a
HyperLink. You could also do some coding to vary what the caption is, I
would think.
hth,