The exEdit 1.0.3.4 introduces the IgnorePrefixInExpression property that specifies a collection of prefixes that are ignored inside an expression. For instance if we have defined an expression for strings like follows: With Edit1 .AddExpression ““”“, _ “ “, _ ““”“, _ True End With In this case we have defined the expression “. So, if the user types in the control the text: ‘This is a string “this is a quote \” bla … bla \” “‘ the control displays the line like follows: ‘This is a string “this is a quote \” bla … bla \” “‘ , but we want to ignore \” expressions. In this case we need to use the following code: With Edit1 .AddExpression ““”“, _ “ “, _ ““”“, _ True .IgnorePrefixInExpression(“”””) = “\” End With In this case, if the user types: ‘This is a string “this is a quote \” bla … bl