I'm trying to write a regular expression to block files with the extension of .lnk, but I can't get the end of line anchor ($) to work. So far I've come up with "\.[Ll][Nn][Kk]" and that blocks "test.lnk" but it also blocks "test.lnk.txt". I tried "\.[Ll][Nn][Kk]$" but it doesn't work. What am I doing wrong?