How can I remove lines that contain a particular string?
You can replace lines containing a string with a Regular Expression Replace All. (Make sure “UltraEdit style Regular Expressions” are selected from the Adanced -> Configuration -> Search -> Regular Expressions Engine dialog.) To do this you would do a find of: Find What: %*YOUR STRING*^p Replace With: (literally nothing) The Regular Expressions section in the Help file has further details and examples are available online in the Power Tips section of our site.