RegEx: Replace all BUT line breaks

Code:

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Dim reg As System.Text.RegularExpressions.Regex
Me.lblAnswer.Text = System.Text.RegularExpressions.Regex.Replace(lblAnswer.Text, ".", "*")

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Okay, so the "." is supposed to convert everything BUT line breaks. Well it converts line breaks as well... how to change so it does not replace line breaks with "*"?

How about this?

vb.net Code:

Dim txt As String = "blahblah" & Environment.NewLine & "blah blah bleh"
Dim exp As String = "[^\r\n]"
Dim newTxt As String = Regex.Replace(txt, exp, "*")
MessageBox.Show(newTxt)