I have some bug in regular expression.

I need to replace some text with regular expression. I need that expression to use "\n" symbol.

Exaple:
Find: some text
Replace: some text\nsome text\n$(IntDir)\\build_nr."

The problem is in "\\build_nr". I need to get "\build_nr" after the replacement. But i've got a "\<b>uild_nr", where <b> is special symbol that equals to \b. What i am doing wrong?

P.S. Sorry for my english.